to grow.
because you need biological life. You also need liquid water. Mars does have oxygen @ very low levels. Other planets do have oxygen.
All animals need water, that is why it is so hard to find life on other planets. However some bacteria on the other hand do no need water to survive.
You need water to live and other planets don't have water
Yes we can! And we have! Several planets and moons have water on them!
u would need water, food, air, other people, and last of all, everything we have on earth!
Maybe you are asking about plants not planets . .
No
Planets need their stars for heat and light, which are essential for supporting life and maintaining stable surface temperatures. Additionally, the gravitational pull of the star helps to keep planets in orbit around it.
NO- People have found water on other planets but there is no life there.
Other planets do not have water nor life
=we need planets because if we didn't we couldn't travel the world and no one will be able to go on holiday! But if you would travel the world were would you go if you had no planets=
There may be ice on some planets that we haven't discovered yet. However, there is ice on Mars and once believed for there to be water.