+ not having enough food for everyone
+ how many people migrate
+ birth/death rates
+ how much water there is
+ how much nutrients/minerals are available
+ how much trees/oxygen is available
The inputs all plants need to carry out photosynthesis are water(H2O) + carbon dioxide (CO2) + sunlight
The answer for this question is C, I just did my final for Biology and got a good score in it.
Hope it helps!
Experimentation to determine the temperature of stars
