life would follow
It'd be bad on earth
What would happen next if sagebrush is disappeared frrom a desert?
You would die.
You would die.
if the oxygen
Everything would die
There would be no bees to pollenate the flowers.
If plants disappeared from Earth, the entire ecosystem would collapse. Plants are primary producers, providing energy and nutrients to all other living organisms. Without plants, herbivores would have no food, leading to a cascading effect on the entire food chain. Additionally, the atmosphere would be affected as plants play a crucial role in producing oxygen and regulating carbon dioxide levels.
This cannot possibly happen, so asking what would happen if it did happen is an exercise in stupidity.
What would happen to the earth if the sun's mass (and, thereby, its gravity) suddenly went to zero? The earth would continue moving in the direction it was going when the sun's gravity disappeared. It would depart the area on a tangent to its original orbit and head off into space. There would be dark days ahead.
Your mass would be unaffected, it is simply to do with the atoms in your body. Your weight would be reduced to zero as that is simply how much your body is affected by gravity.