A) Mitochondria - because they are double membraned and the inner one is highly folded into 'cristae'
C.) Rocks in the Geosphere
Hope this helps :)
That isn't even possible. Your body is made of them. If you had none then you wouldn't be existing.
CO2 + H2O = O2 m + C6H12O6 photosynthesis
C6H12Og + O2 = CO2 + H2O + ATP respiration