What if there's no gravity on earth?

hi,its really wonderful feeling....there is no necessity of vehicals..petrol..all we hanging in a space on earth..

If there will be no gravity on the earth, there will be no organism alive.

then even we can fly and we would have very good communication when ever we want to meet someone we can just jump fly and reach there isnt it?

Indeed, everything will start flying.

There would be no earth! Gravity is relative to size, that's why the moon has little and planets like saturn have very strong gravity. Theoretically, if gravity were greatly reduced, our bodies would change dramatically. You wouldn't need muscles to move or stand up so they would waste away and we would be all skinny with big heads like sci-fi aliens!