photosynthesis

[meggiepoo]

How would the composition of the earths atmosphere change if green plants and other autotrophs disappeared?

[canalon]

Well you can probably give some thought by yourself. So we won't have to do your homework. And being polite doesn't hurt either.... The first warning is close.
So what does plant do to the atmosphere that anomals can't do? Think greenhouse gas...

[mesadu]

If green plants disappeared from our planet ,in short we will lose oxygen & ya know what'll hapen to us if we lose that.