The first diagram shows a string pendulum freely swinging back and forth. The second diagram shows the same
pendulum with a peg (the dark circle) placed in the way of the pendulum. What will be the maximum position of
the pendulum after it hits the peg.
At or above A
At B
At or below
The pendulum will swing around the peg

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.

b ti isnfornopgnoernfrof

protistas excret ethanol used in the manufacture of vinegar