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Daniel-  There was not alot of oxygen which cause there to be less animals and vegetation if anything only single called organisms and other small microorganisms

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Daniel-  There was not alot of oxygen which cause there to be less animals and vegetation if anything only single called organisms and other small microorganisms

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The atmosphere differed from today’s atmosphere because there was less oxygen. Basically everything was going on in the water. There was no longer one cell organisms.

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I think there were alot more trees. There obviously were no buildings so there was alot of free land. There werent people so there were more animal species. The atmosphere had less oxygen than today. Continents formed due to plate tectonics. Complex cell organisms form. Earth froze a couple of times. Organisms started to have hard shells. Fish started to “walk” on land. Dinosaurs flourished on land until the triassic period.

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I think Earth had a lot more different species of animals and I also think it had more trees, other plants, open land, and water

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I think the earth had way more rock because that’s what everything was made of, and single cell organisms started to become multi cellular

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I think the earth was filled with vegetation and there was many animals that are now extinct. I don’t think there was any cities that polluted the earth and the animals could go anywhere.

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There was mostly rock and mostly everything was happening in water. Also extinction even had occurred . Animals would start to move to land.

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There was alot  more plant life in the sea but when they photosynthesized they didn’t release oxygen in the air.so their was nothing but plants until 500,000 years later when the earth had animals.

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I think that 1 billion years ago the earth looked very different than it does today. I think it had alot of different species  and more open space and land. There weren’t any people to be cutting down trees and build huge buildings. Over time more oxegyn was produced into the air which caused more organisms to develope. A very large majority of the earth was made up of rocks so many living things lived in the water.

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The planet itself was newly created and single cell organisms were just now starting to become multi cellular, thus, the road to evolution was paved a little further, however still much was left to be accomplished in the coming years.

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I think that the earth was filled with many plant species. The earth had different continent placement. There was very little organisms.

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Oxygen levels were lower, there's no longer just one cell organisms, they are making larger organisms. The earth gets cold and evolution happens, the world is still had a lot of green life, everything used to be all see there wasn't much land yet. Just rocks so it's all underwater.

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Earth 1 billion years ago was completely different than it is now. Cells are just starting to form into bigger, living things. The Earth was not separated into four seasons but it was frozen over from pole to pole.Animals were just starting to evolve compared to now where all animals are considered normal. There were no modernized structures, just rocks and more rocks.

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1 billion years ago there was little life mainly bacteria, algae and fungi, and the creation and forming of Rodinia which is the supercontinent which then broke apart forming the continents we have now. The other change was in the atmosphere with an increase in oxygen helping other organisms develope

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There was just rock .There wasn’t any land.Everything that happened ocurred im water .Cells were untiring together and formed other organisms . Animals were begging to move to land

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I think the earth had a lot more wildlife and possibly wasn’t has flat since we might have needed to flaten the ground to build buildings. Things started to become and not to long after that thing started to freeze.

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The only life that was on earth 1 billion years ago was cells. These cells were coming together and trying to make larger organisms with different parts.

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I think the earth 1 billion years ago looked way more healthier and there were more species because they weren’t extinct. There were cells a billion years ago and they are trying to come together to get larger organisms. It was just rock and nothing was happening, but only under water. Animals starting working their way up to land.

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I think there would have been a lot more plants, not as many species of animals since they haven’t really evolved yet. The first organism on earth was bacteria.  However, everything was rock, anything else happened in water.

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The organisms that existed then were just starting to become multi-cellular after the recent discovery of reproduction. Green was plentiful and also became multi-cellular before animals. The making of these new organisms started forming animals with recognizable parts such as limbs. All the plants at this time were located in the water which is much different from today. There also weren't many islands due to all the land on earth being bunched together at this time period if you go with the theory about Rodinia. All of this land though was purely rock. At this time there was not nearly as much oxygen as of now.

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I feel that the earth was way cleaner because there was no one to throw garbage on the ground, or no factory's putting chemicals in the air we breathe, or even cars that had pollution to make the way the earth is today. The earth was also like nothing no animals no humans, it was just cells and plants. As time went on plants and animals evolved and more and more became a thing. There were so many other species of animals walking around on the planet. I feel the most important thing was that there was no soil so all plants grew underwater.

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I think earth a billion years ago had a lot more tress and more nature and not any houses just pure desert style too also that there was a rock record because everything use to be in the water so everything happened in the water because there was nothing on kand

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There were different types of species around that time. It was still full of life, organisms, etc. There were fossils of red algae from that time that were clearly forming specialised sex cells such as spores.

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I feel earth looked much different then earth looks today. I feel that there were more jungles and more animals that long ago. Mostlikely things that have since gone extinct. Organisms first started teaming up to form larger beings.

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I think that 1 billion years ago, Earth looked simple and less animals, and no human life, mostly surrounding plants (plant life), and there wasn’t much life besides the life of plants and there was also a lot of organisms and cells causing plant life, but there was only rock on land, everything else was living in water.

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I think that there were just mainly organisms on earth back them such as bacteria since plants were a fairly new species. Multi-cellular cells were also starting to pop up that had limbs and other parts, and cells started teaming up to make larger things.

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I think that the earth a billion years ago looked like a bunch of trees and open land for most extinct animals that aren’t on earth anymore.  There most definitely had to have water because of the fact that there were trees and there were living organisms. There were very small organisms that were beginning to have actual organs and mouths, also there began to have multicellular life going on. Around this time the earth become frozen. After that life began not like human life but animal and insect life with hard and soft shell or skin.