4.) photosynthesis is often described as two series of reactions, the light dependent and the light-independent or calvin cycle reactions. describe all steps that occur in the light-dependent reactions, including raw materials, energy transfer, and products.

photosynthesis is important in many helio-centered plants

Explanation:

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.