Plants give off oxygen (that we breathe)and breathe in our carbon dioxide that we exhale
It would decrease, because the producers are the source of food for the herbivores
Wow! this si a huge question but analyzing all the datils from ths option you give me I have to say that C option: <span>Heat energy became trapped in the atmosphere by greenhouse gases and was used as an energy source in the building of macromolecules, is the one that gets closer to what the scientists have said recently. Take into account for example, the examinations of Dr. Stanley Millers. I think this can help you</span>
Answer:
The lion population would decrese
Explanation: The more hyenas would mean more competion for food which would lead to lions dieing off due them not being able to get food hope this helps god bless