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Need | Challenge | Possible Solutions
Oxygen | Mars has 95% carbon dioxide | NASA has a machine called MOXIE, which uses electricity to split carbon dioxide into carbon monoxide (CO) and oxygen (O).
2. food | If settlers brought their own food, it would need to last for twenty-six months until the next supply rocket arrives. Each person’s supply would weigh around 5 tonnes. Again, that’s not a good use of space or rocket fuel.
| On Earth, we already have a way to grow crops without soil. It’s called hydroponics. Martian crops could also be grown in special nutrient-rich water. However, if you’re serious about living on the Red Planet, you’d need to make the climate more like Earth’s.
3. water | It doesn’t rain on Mars. This means the planet has no rivers or lakes. Water is found as ice in the polar ice caps, but these ice caps are covered in a thick layer of frozen carbon dioxide.  | You could look for water by drilling deeper into the ground. Another option is to dig up the underground ice and use heat to turn it into vapour. This vapour could be condensed back into drinking water.
4. shelter | The atmosphere of Mars is a hundred times thinner than Earth’s. As well as being poisonous to breathe, a thinner atmosphere means very little air pressure. | Any shelter built on Mars would need to be pressurised and have airlocks. These would separate indoors from outdoors.

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I would not like to go to mars because it has no water and it is hard to grow crops and you need oxygen to live there and oxygen is hard to get up there. Mars is a cool planet but i just don't want to go up there because you need to build crops and build houses that you can actually breathe in on mars

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That there is a solar probe very close to the sun. Parker Solar Probe will travel through the Sun’s atmosphere—closer to the surface than any spacecraft before it—providing humanity with the closest-ever observations of a star. Our solar system is made up of a star, eight planets, and countless smaller bodies such as dwarf planets, asteroids, and comets.

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I picked lions. Prime habitat for lions is open woodlands, thick grassland, and brush habitat where there is enough cover for hunting and denning. These areas of grassland habitat also provide food for the herbivores lions prey upon. Lions usually hunt at night, particularly at dusk and dawn, with lionesses doing most of the work.

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Living organisms have basic needs. Plants need air, water, nutrients, sunlight, and space to grow. Animals need air, food, water, and shelter. Living organisms depend on each other and on their environments, or habitats, to meet their needs for survival.

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Water, food and shelter are among the most important requirements: Water: Fish not only live in water, but they get oxygen from water. They breathe by taking water into their mouths and forcing it out through gill passages.

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the four requirements are. oxygen, water, food and shelter.

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Because there hasn't been a photo that has been on the Mars surface and the drawing is what people think the surface will look like.

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Some people would want to go to mars.

Mars is five hundred times further away then our Moon. Or another way of saying it 54.6 million kilometers.

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I think a martian is someone who lives on mars and mars is a red star that you can see in the night sky sometimes.