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Why does an earth-like planet need to be earth-sized to sustain life?
Wiki User
∙ 15y ago
Who says it does? If we're looking at it as a potential colonization site that would be convenient ... much smaller and it will have a very thin atmosphere (like Mars); much larger and it will have a gravity that's uncomfortable to move around in ... but that wouldn't affect simple life like bacteria much.
Wiki User
∙ 15y ago
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What is the characteristics about earth?
a few characteristics are: 1) it is the only planet known to sustain life 2) it contains hydrogen 3) it has different types of terrain
How does soil sustain life?
agriculturist
What are the three features of Earth that allows it to sustain life?
In order for earth to sustain life it has the magnetic field, plate tectonics, and active volcanoes.
Is soil a valuable resource on earth why or why not?
Top soil has the enriched ingredients required for growing all the multitudinous plant life which is required to sustain life on the planet. And you can thank the lowly earth worm whose casings (poop) create that top soil.
What term describes the part of the atmosphere that can sustain life?
Exosphere
What planet is known to sustain life?
No planet except the planet Earth is known to sustain life till date.
What is the planet that could not sustain human life?
Earth is the only planet in our solar system that can sustain human life.
What is the planet that is known to sustain life?
it is the planet you stand on, Earth
Why are there beasts?
Because our planet can sustain life
Does the planet mercury have the ability to sustain life?
No
What must a planet have to sustain life?
To sustain life, a planet must have oxygen and a variety of gases, plant life, strong enough gravity　ａｎｄ　ｅｎｏｕｇｈ　ｃｌｅａｎ　ｗａｔｅｒ．
Why is it that earth is considered a living planet?
because it is the only planet that can sustain life.
Which planet is considered the most Earthlike?
Mars is the most similar known planet to Earth in our solar system. It is thought to have similar composition, and, maybe even water. It cannot, however, sustain life as we know it, because Mars lacks both a thick atmosphere, and an active core (therefore it also lacks a magnetosphere, so its atmosphere is ionized).
Is planet mercury suitable for life?
Not currently. It does not have oxygen and water to sustain life.
Why earth is called an unique planet?
earth is supposedly the only planet that can sustain life and has oxygen
What are the features of the earth are necessary to sustain life?
Apart from water, you need oxygen in the air to sustain life on earth. With these two indispensable features, both mankind,animals and botanical reserves sustain life on this planet.
Can planet Mars sustain life?
there is NO living life on Mars b/c there is no liquid water on it.
