Question

what happens if earth gravitation doesn't exist​

Answer 1

All people will float in air as no gravitational force will exist that will pull towards them

Answer 2

Answer:

When earth gravitation doesn't exist

Does life need gravity

Plants certainly do. Charles Darwin was the first western scientist to show that rooted plants have gravity sensors: plumb lines, effectively, that give them a sense of up or down. Turn a plant pot on its side and you’ll find that the roots continue to grow towards the centre of the Earth.