No life would still go on without humans
It is important in case there is life beyond Earth.
The earth holds all life, including humans.
If you mean animal life than so you can eat them, and if you mean us humans than if there where no humans the earth would be boring.
It provides basic energy source and life on Earth
Because earth is the only planet that has life on it if it weren't for earth there would be no such thing as humans and animals and plants and school and you.
No. Water is important to plants and every animal on the planet. Without water, there would be no life on Earth.
Humans give this planet life
It is important to have water on Mars as it is required for human life. Without it, humans would only be able to stay there as long as the water they brought from Earth lasted.
It is possible.
there are humans
Water is an important part needed by living and nonliving things and if it is taken away, the whole system of life on earth will not function as it should be. Humans and animals needs water to drink for them to live. Water is an important part of the life cycle of every living beings and everyday life. Humans and animals basically needs water to drink in order for them to continue living.
The planet Earth doesn't need life; and especially humans are a danger for the Earth.