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a narrow strip of land, bordered on both sides by water, connecting two larger bodies of land

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a narrow strip of land, bordered on both sides by water, connecting two larger bodies of land

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Panama: Panama is the only place in the world where you can see the sun rise on the Pacific and set on the Atlantic.; The canal generates fully one-third of Panama's entire economy.

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Panama: Panama is the only place in the world where you can see the sun rise on the Pacific and set on the Atlantic.; The canal generates fully one-third of Panama's entire economy.

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Bahamas: the islands of The Bahamas are a tropical hot spot and rank among the best vacation destinations in the world; Their beauty, amazing weather, and the fact that there are so many islands (700 in  total) are part of what makes this tropical archipelago special.

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Bahamas: the islands of The Bahamas are a tropical hot spot and rank among the best vacation destinations in the world; Their beauty, amazing weather, and the fact that there are so many islands (700 in  total) are part of what makes this tropical archipelago special.

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A ring shaped coral reef in closing a lagoon

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A ring shaped coral reef in closing a lagoon

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Kure Atoll: The most remote of the North Western Hawaiian islands; Its oval shaped and is 6 miles wide

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Kure Atoll: The most remote of the North Western Hawaiian islands; Its oval shaped and is 6 miles wide

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national park: used to be a sea; THE TERRAIN WAS SHAPED BY WATER.

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national park: used to be a sea; THE TERRAIN WAS SHAPED BY WATER.

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bengal: Bay of Bengal is a sea that is a part of the north-eastern Indian Ocean; bengal is famous for many ships and shipwrecks including the 1850 American Eagle vessel brig

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bengal: Bay of Bengal is a sea that is a part of the north-eastern Indian Ocean; bengal is famous for many ships and shipwrecks including the 1850 American Eagle vessel brig

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an isolated hill or mountain rising abruptly above the surrounding land

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an isolated hill or mountain rising abruptly above the surrounding land

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Black butte: Buttes were created through the process of erosion; flat-topped hill surrounded by a steep

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Black butte: Buttes were created through the process of erosion; flat-topped hill surrounded by a steep

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a deep valley with steep sides, often with a stream flowing through it.

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a deep valley with steep sides, often with a stream flowing through it.

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Black canyon: Colorado’s biggest cliff is the Black Canyon’s Painted Wall; It is one of the youngest national parks

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Black canyon: Colorado’s biggest cliff is the Black Canyon’s Painted Wall; It is one of the youngest national parks

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one of the main landmasses of the globe, usually reckoned as seven in number

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one of the main landmasses of the globe, usually reckoned as seven in number

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North America:  Canada. The country is covering almost half the North American continent's land area; There are 23 countries in North America

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North America:  Canada. The country is covering almost half the North American continent's land area; There are 23 countries in North America

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a nearly flat plain of alluvial deposit between diverging branches of the mouth of a river, often, though not necessarily, triangular

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a nearly flat plain of alluvial deposit between diverging branches of the mouth of a river, often, though not necessarily, triangular

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Gilbert deltas: gilbert Deltas are wetlands that form as rivers empty their water and sediment into another body of water; influenced by the Nile's flow

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Gilbert deltas: gilbert Deltas are wetlands that form as rivers empty their water and sediment into another body of water; influenced by the Nile's flow

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a region so arid because of little rainfall

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a region so arid because of little rainfall

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Sahara Desert: The Sahara Desert spans some 8,600,000 square kilometres; Scientists estimate that the Sahara’s overall size has grown to be 10% larger than it was nearly a century ago

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Sahara Desert: The Sahara Desert spans some 8,600,000 square kilometres; Scientists estimate that the Sahara’s overall size has grown to be 10% larger than it was nearly a century ago

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a sand hill or sand ridge formed by the wind, usually in desert regions or near lakes and oceans

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a sand hill or sand ridge formed by the wind, usually in desert regions or near lakes and oceans

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a large floating mass of ice, detached from a glacier and carried out to sea.

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a large floating mass of ice, detached from a glacier and carried out to sea.

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glacier bergs: Icebergs are pieces of ice that formed on land and float in an ocean or lake; Icebergs come in all shapes and sizes, from ice-cube-sized chunks to ice islands the size of a small country

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glacier bergs: Icebergs are pieces of ice that formed on land and float in an ocean or lake; Icebergs come in all shapes and sizes, from ice-cube-sized chunks to ice islands the size of a small country

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a tract of land completely surrounded by water, and not large enough to be called a continent

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a tract of land completely surrounded by water, and not large enough to be called a continent

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Java: Java is the world's most populated island with over 130 million people; largest Indonesian Island. It was formed mainly by volcanic eruptions.

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Java: Java is the world's most populated island with over 130 million people; largest Indonesian Island. It was formed mainly by volcanic eruptions.

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a wild land overgrown with dense vegetation, often nearly impenetrable, especially tropical vegetation or a tropical rainforest

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a wild land overgrown with dense vegetation, often nearly impenetrable, especially tropical vegetation or a tropical rainforest

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Secondary jungles: Secondary forests tend to have trees closer spaced than primary forests; Secondary forests typically were thought to lack biodiversity compared to primary forests.

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Secondary jungles: Secondary forests tend to have trees closer spaced than primary forests; Secondary forests typically were thought to lack biodiversity compared to primary forests.

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an area of shallow water separated from the sea by low sandy dunes

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an area of shallow water separated from the sea by low sandy dunes

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atoll lagoon: an area of shallow water separated from the sea by low sandy dunes; atolls are uninhabited desert islands relatively untouched and unexplored by humans

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atoll lagoon: an area of shallow water separated from the sea by low sandy dunes; atolls are uninhabited desert islands relatively untouched and unexplored by humans

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a body of fresh or salt water of considerable size, surrounded by land

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a body of fresh or salt water of considerable size, surrounded by land

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tectonic lakes: Tectonic lakes are lakes formed by the deformation; lateral and vertical movements of the Earth's crust

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tectonic lakes: Tectonic lakes are lakes formed by the deformation; lateral and vertical movements of the Earth's crust

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a piece of land jutting into the sea or some other large body of water

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a piece of land jutting into the sea or some other large body of water

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a hollow in the earth, especially one opening more or less horizontally into a hill, mountain,

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a hollow in the earth, especially one opening more or less horizontally into a hill, mountain,

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cape of good hope: rocky promontory at the southern end of Cape Peninsula,; One historical account says that Dias named the promontory Cape of Storms

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cape of good hope: rocky promontory at the southern end of Cape Peninsula,; One historical account says that Dias named the promontory Cape of Storms

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Talus cave: Talus caves are openings formed between boulders piled up on mountain slopes; Most of them are very small both in length and in cross section

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Talus cave: Talus caves are openings formed between boulders piled up on mountain slopes; Most of them are very small both in length and in cross section

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the bed of a stream, river, or other waterway.

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the bed of a stream, river, or other waterway.

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English channel: The current English name (in general use since the early 18th century); produced a sea level at least 300 feet lower than the present. Later the melting of the ice raised the sea level to its present mark,

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English channel: The current English name (in general use since the early 18th century); produced a sea level at least 300 feet lower than the present. Later the melting of the ice raised the sea level to its present mark,

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Limestone: Limestone is a sedimentary rock composed mainly of the mineral calcite, which is a crystalline form of Calcium Carbonate (CaCO3); Limestone often contains variable amounts of silica in the form of Jasper or Flint

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Limestone: Limestone is a sedimentary rock composed mainly of the mineral calcite, which is a crystalline form of Calcium Carbonate (CaCO3); Limestone often contains variable amounts of silica in the form of Jasper or Flint

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a long, narrow arm of the sea bordered by steep cliffs: usually formed by glacial erosion.

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a long, narrow arm of the sea bordered by steep cliffs: usually formed by glacial erosion.

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a large tract of land covered with trees and underbrush; woodland.

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a large tract of land covered with trees and underbrush; woodland.

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star dune: Star Dune is one of the two tallest dunes in North America; This dune stands about 741 feet (225 m) from base to summit

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star dune: Star Dune is one of the two tallest dunes in North America; This dune stands about 741 feet (225 m) from base to summit

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a hot spring that intermittently sends up fountainlike jets of water and steam into the air.

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a hot spring that intermittently sends up fountainlike jets of water and steam into the air.

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yellow stone:  hot springs that erupt periodically. The eruptions is the result of super-heated water below-ground becoming trapped in channels leading to the surface;  hot rock that heats the water

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yellow stone:  hot springs that erupt periodically. The eruptions is the result of super-heated water below-ground becoming trapped in channels leading to the surface;  hot rock that heats the water

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The Nordfjord: Nordfjord is situated between the largest mainland glacier in Europe and Norway's wildest coast at the western cape; 565 m deep and 105 km long

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The Nordfjord: Nordfjord is situated between the largest mainland glacier in Europe and Norway's wildest coast at the western cape; 565 m deep and 105 km long

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 tropical rainforest: Not only do they provide air, water, medicine, food, and shelter to a multitude of living beings; one of our best natural defenses against climate change because of their capacity

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 tropical rainforest: Not only do they provide air, water, medicine, food, and shelter to a multitude of living beings; one of our best natural defenses against climate change because of their capacity

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an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of accumulation, as in continental glaciers.

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an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of accumulation, as in continental glaciers.

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Hanging glaciers: Not all glaciers reach the ocean or a valley floor. Hanging glaciers, like this one in the Alps near Zermatt, Switzerland, stop partway down a mountain cliff;  The icefalls and avalanches caused by hanging glaciers often put the area beneath them at risk

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Hanging glaciers: Not all glaciers reach the ocean or a valley floor. Hanging glaciers, like this one in the Alps near Zermatt, Switzerland, stop partway down a mountain cliff;  The icefalls and avalanches caused by hanging glaciers often put the area beneath them at risk

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a portion of an ocean or sea partly enclosed by land

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a portion of an ocean or sea partly enclosed by land

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Gulf of Oristano: The Phoenicians used the gulf as their trading centre and built the wonderful city of Tharros; the most important evidence of the ancient Nuragic culture is still evident in this territory such as mysterious sacred wells

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Gulf of Oristano: The Phoenicians used the gulf as their trading centre and built the wonderful city of Tharros; the most important evidence of the ancient Nuragic culture is still evident in this territory such as mysterious sacred wells

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a natural elevation of the earth's surface, smaller than a mountain.

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a natural elevation of the earth's surface, smaller than a mountain.

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Drumlin:  an elongated whale-shaped hill formed by glacial action; elongated, teardrop-shaped hills of rock, sand, and gravel that formed. They can be up to 2 kilometers (1.25 miles) long.

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Drumlin:  an elongated whale-shaped hill formed by glacial action; elongated, teardrop-shaped hills of rock, sand, and gravel that formed. They can be up to 2 kilometers (1.25 miles) long.

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a tract of low wet land, often treeless and periodically inundated, generally characterized by a growth of grasses, sedges, cattails, and rushes.

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a tract of low wet land, often treeless and periodically inundated, generally characterized by a growth of grasses, sedges, cattails, and rushes.

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tidal salt marshe: coastal wetlands that are flooded and drained by salt water brought in by the tides; They are marshy because the soil may be composed of deep mud and peat. Peat is made of decomposing plant matter that is often several feet thick.

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tidal salt marshe: coastal wetlands that are flooded and drained by salt water brought in by the tides; They are marshy because the soil may be composed of deep mud and peat. Peat is made of decomposing plant matter that is often several feet thick.

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a natural elevation of the earth's surface rising more or less abruptly to a summit, and attaining an altitude greater than that of a hill, usually greater than 2,000 feet (610 meters).

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a natural elevation of the earth's surface rising more or less abruptly to a summit, and attaining an altitude greater than that of a hill, usually greater than 2,000 feet (610 meters).

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Mount Everest: Mount Everest, the highest mountain in the world, is located in Nepal and marks the border of Nepal and Tibet; Over the past 70 years thousands of adventurers have been attempting to, and have successfully reached the roof of the world

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Mount Everest: Mount Everest, the highest mountain in the world, is located in Nepal and marks the border of Nepal and Tibet; Over the past 70 years thousands of adventurers have been attempting to, and have successfully reached the roof of the world

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the vast body of salt water that covers almost three fourths of the earth's surface

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the vast body of salt water that covers almost three fourths of the earth's surface

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pacific ocean:The Pacific Ocean is also home to many Atolls. An Atoll is a coral island surrounded by a lagoon. Atolls are only found in warm ocean waters; The word “Pacific” means peaceful. The Pacific Ocean got its name from the explorer Ferdinand Magellan. He called the ocean “mar pacific”, which meant peaceful sea

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pacific ocean:The Pacific Ocean is also home to many Atolls. An Atoll is a coral island surrounded by a lagoon. Atolls are only found in warm ocean waters; The word “Pacific” means peaceful. The Pacific Ocean got its name from the explorer Ferdinand Magellan. He called the ocean “mar pacific”, which meant peaceful sea

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an area of land almost completely surrounded by water except for an isthmus connecting it with the mainland

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an area of land almost completely surrounded by water except for an isthmus connecting it with the mainland

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headland: A headland is a cliff that sticks out into the sea and is surrounded by water on three sides; Headlands are formed from hard rock, that is more resistant to erosion, such as limestone, chalk and granite

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headland: A headland is a cliff that sticks out into the sea and is surrounded by water on three sides; Headlands are formed from hard rock, that is more resistant to erosion, such as limestone, chalk and granite

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an area of land not significantly higher than adjacent areas and with relatively minor differences in elevation, commonly less than 500 feet (150 meters), within the area

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an area of land not significantly higher than adjacent areas and with relatively minor differences in elevation, commonly less than 500 feet (150 meters), within the area

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till plain:  large flat or gently-sloping areas of land on which glacial till has been deposited from a melted glacier;In some areas, these depositions can be up to hundreds of feet thick

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till plain:  large flat or gently-sloping areas of land on which glacial till has been deposited from a melted glacier;In some areas, these depositions can be up to hundreds of feet thick

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a land area having a relatively level surface considerably raised above adjoining land on at least one side, and often cut by deep canyons

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a land area having a relatively level surface considerably raised above adjoining land on at least one side, and often cut by deep canyons

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volcanic plateaus: highly fluid basaltic lava during numerous successive eruptions through numerous vents without violent explosions;  This region, known as the Thulean Plateau, is generally believed to have been broken up by foundering of the Earth's crust to form the present ocean basin

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volcanic plateaus: highly fluid basaltic lava during numerous successive eruptions through numerous vents without violent explosions;  This region, known as the Thulean Plateau, is generally believed to have been broken up by foundering of the Earth's crust to form the present ocean basin

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a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels

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a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels

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The Nile river: The Nile is often associated with Egypt, but in fact, it flows through 11 countries; The Nile is one of the most famous rivers anywhere on our planet

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The Nile river: The Nile is often associated with Egypt, but in fact, it flows through 11 countries; The Nile is one of the most famous rivers anywhere on our planet

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a steep fall or flow of water in a watercourse from a height, as over a precipice; cascade

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a steep fall or flow of water in a watercourse from a height, as over a precipice; cascade

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angel fall: . The highest waterfall in the world, the cataract drops 3,212 feet (979 metres) and is 500 feet (150 metres) wide at the base; barely making contact with the sheer face. The falls are located in Canaima National Park

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angel fall: . The highest waterfall in the world, the cataract drops 3,212 feet (979 metres) and is 500 feet (150 metres) wide at the base; barely making contact with the sheer face. The falls are located in Canaima National Park

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a vent in the earth's crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals.

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a vent in the earth's crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals.

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lava domes: Lava domes are formed when erupting lava is too thick to flow and makes a steep-sided mound as the lava piles up near the volcanic vent.  Lava domes have formed in Mount St. Helens and experts say a lava dome is growing inside the Shinmoedake volcano in Japan

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lava domes: Lava domes are formed when erupting lava is too thick to flow and makes a steep-sided mound as the lava piles up near the volcanic vent.  Lava domes have formed in Mount St. Helens and experts say a lava dome is growing inside the Shinmoedake volcano in Japan

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an elongated depression between uplands, hills, or mountains, especially one following the course of a stream

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an elongated depression between uplands, hills, or mountains, especially one following the course of a stream

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v-shaped valley: The very steep-walled sides along with a narrow floor look like the letter “V” from a distance; The fast flowing rivers with steep gradients create these valleys in the upper course of the river. In V-shaped valley, the first cuts are made by flowing rivers and streams

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v-shaped valley: The very steep-walled sides along with a narrow floor look like the letter “V” from a distance; The fast flowing rivers with steep gradients create these valleys in the upper course of the river. In V-shaped valley, the first cuts are made by flowing rivers and streams

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one of the vast, nearly level, treeless plains of the Arctic regions of Europe, Asia, and North America

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one of the vast, nearly level, treeless plains of the Arctic regions of Europe, Asia, and North America

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the tundra biome: the tundra biome is an ecosystem situated near the North Pole in the Arctic Circle;he tundra biome is an ecosystem situated near the North Pole in the Arctic Circle

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the tundra biome: the tundra biome is an ecosystem situated near the North Pole in the Arctic Circle;he tundra biome is an ecosystem situated near the North Pole in the Arctic Circle

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a tract of wet, spongy land, often having a growth of certain types of trees and other vegetation, but unfit for cultivation

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a tract of wet, spongy land, often having a growth of certain types of trees and other vegetation, but unfit for cultivation

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fresh water swamps: Freshwater swamps form around lakes and streams. Rain and seasonal flooding cause water levels to fluctuate; In the wet soil, water-tolerant vegetation grows and helps maintain a moist, swampy condition

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fresh water swamps: Freshwater swamps form around lakes and streams. Rain and seasonal flooding cause water levels to fluctuate; In the wet soil, water-tolerant vegetation grows and helps maintain a moist, swampy condition

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the salt waters that cover the greater part of the earth's surface

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the salt waters that cover the greater part of the earth's surface

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the caribbean sea: the Caribbean Sea is a body of water, southeast of the Gulf of Mexico and adjacent to the Atlantic Ocean; As small and insignificant as the small island developing states of the Caribbean consider themselves to be in the grand scheme of things, the Caribbean Sea is one of the largest seas at over 1.063 million square miles in size

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the caribbean sea: the Caribbean Sea is a body of water, southeast of the Gulf of Mexico and adjacent to the Atlantic Ocean; As small and insignificant as the small island developing states of the Caribbean consider themselves to be in the grand scheme of things, the Caribbean Sea is one of the largest seas at over 1.063 million square miles in size

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Often straits. (used with a singular verb) a narrow passage of water connecting two large bodies of water

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Often straits. (used with a singular verb) a narrow passage of water connecting two large bodies of water

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strait of gibraltar: Beyond the Ocean lies the Americas while the Sea has numerous nations on its coastline. Morocco in the South and Spain to the North surround the majority of the straits; Besides being an important shipping and trade route, the straits also have much to offer. There are numerous interesting facts associated with its long history

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strait of gibraltar: Beyond the Ocean lies the Americas while the Sea has numerous nations on its coastline. Morocco in the South and Spain to the North surround the majority of the straits; Besides being an important shipping and trade route, the straits also have much to offer. There are numerous interesting facts associated with its long history