Question

How would air composition change if there were no plants??

Answer 1

Answer:

With no natural means to convert CO2 to oxygen - the atmosphere would gradually build up CO2 - and at a much MUCH faster rate than global climate change is being driven by the excess CO2 that we're producing. Without plants to eat, all herbivores and most omnivores will die within a matter of weeks.

Answer 2

Answer:

With no natural means to convert CO2 to oxygen - the atmosphere would gradually build up CO2 - and at a much MUCH faster rate than global climate change is being driven by the excess CO2 that we're producing. Without plants to eat, all herbivores and most omnivores will die within a matter of weeks.