Microorganisms also exist in the fossil record, but they’re rarer than other types of fossils. The most common fossils form from hard body parts, such as bones, teeth, and shells. Why do you think these fossils are more common than fossils of other soft tissues or microorganisms?

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.

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.

answerthe capacity to preform work;