How does photosynthesis help humans survive?

Question

Photosynthesis gives us oxygen so we can breath and glucose we can break down for energy
Photosynthesis gives us oxygen, but we could eat animals for a food source
Photosynthesis gives us energy through glucose and carbon dioxide which we need to breath
Photosynthesis gives us light energy

Answer 1

for plants to grow, which are a source of food and oxygen for humans. Without photosynthesis, there would be no food chain, and we would have limited sources of oxygen and food. Therefore, photosynthesis helps humans survive by providing vital resources necessary for our survival.