Imagine you are riding on a train. Which object will appear to be stationary from the train seat? A. A building outside
B. A poster on the train
C. A passenger walking down the train aisle O D. A tree outside

C. a passenger walking down the train aisle

Explanation:

I just got it right on apex lol

B. A poster on the train.

Explanation:

If you imagine this, everything else is moving, except the poster.

Also, I got it correct on a-p-e-x

If you dont believe me, look at the comments on the other persons answer.

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.

make   gliitsh plesea   !