Answer:
convex lens
Explanation:
because when parallel rays of light pass through a lens are brought together through a lens
I think he had an acident and he forgot or maybe of cycling alot he had this problem
Answer:
The process of photosynthesis is energy-storing because the process converts light energy into chemical energy, which is stored in the bonds of glucose.
In a closed ecological system, any waste products produced by one species must be used by at least one other species. If the purpose is to maintain a life form, such as a mouse or a human, waste products such as carbon dioxide, feces and urine must eventually be converted into oxygen, food, and water.