One is simple and the other one is compound, simple ;D
Answer:
Water
Explanation:
Water along with sunlight and Carbon dioxide is essential for photosynthesis.
This statement is true. Developing countries indeed tend to have more people in urban areas than rural areas. For example, New York City has the massive population in the state of New York, compared to its rural areas upstate.
Answer:
Light energy (sunlight)
By autotrophs
As they make food from it