I believe it is A because the plant is offering protection while the bacteria is converting it in to nitrogen that the plant can use!
35 b.
37 h
39 i
41 d
hope that helps
The answer should be D hope this helps
So to put them all in the same units we have
<span>2500 mL </span>
<span>250 mL </span>
<span>25mL </span>
<span>2,500,000,000mL </span>
<span>So the third one is the smallest</span>
