Answer:
Balanced reaction: 
S is oxidized and N is reduced.
is the oxidizing agent and ZnS is the reducing agent.
Explanation:
Reaction: 
Oxidation: 
Balance charge:
...............(1)
Reduction: 
Balance H and O in acidic medium : 
Balance charge:
...............(2)
[
Equation-(1)] + [
Equation-(2)]:

Oxidation number of S increases from (-2) to (0) for the conversion of ZnS to S. Therefore S is oxidized.
Oxidation number of N decreases from (+5) to (+2) for the conversion of
to NO. Therefore N is reduced.
consumes electron from ZnS. Therefore
is the oxidizing agent and ZnS is the reducing agent.
The answer is letter b. from the sunlight. Plants are also referred as producers. Typically, plants gets their energy from the sun, wherein it helps them produce their own food, through the sunlight, the carbon dioxide present, the process wherein the producers undergo is known as photosynthesis.
That’s the correct answer I believe ^
Answer:
x, Z, M, H, A, K, E, I, L, R, O, W