Which of the following is not a response?only one

Aa tree turning its leaves towards the sun
Ba mushroom appearing wet in the rain
Ca protozoa contracting when touched
Dyour stomach rumbling when you smell food

B. A mushroom appearing wet in the rain.

Explanation:

Responses are like a cause and effect sequence.

A. A tree will turn its leaves to the sun because it needs the sun to produce energy.

C. Protozoa will contract when touched becasuse it is a very sensitive organisim

D. You stumach will start to rumble when you smell something becasue that is your brain telling you, you need to eat something

The correct answer will be B.

a mushroom will only appear wet when it rains so no.

n+h→nh3

we must remember that nitrogen and hydrogen are both diatomic molecules in their standard gas form. this adjusts the equation to

n2+h2→nh3

now we need to adjust coefficients in order to balance the atoms on each side of the equation. currently we have 2 atoms of nitrogen and 2 atoms of hydrogen on the reactant side and 1 atom of nitrogen and 3 atoms of hydrogen on the product side.

we can balance the hydrogens by placing a coefficient of 2 in front of ammonia and a coefficient of 3 in front of the hydrogen.

n2+3h2→2nh3

this gives us 6 hydrogen on each side and coincidentally the nitrogens now equal 2 on each side.