Why cant planets take nitrogendirectly from the air?

Photosynthesis converts light energy to chemical energy. which molecules are the end product of this transformation of energy in this reaction?

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.

Modern computers can store about as much information as the human brain. true false its false i took the test