This lines could be seen as examples of sensory imaginary. More precisely it is connected to smell because of the potato and sight because of how this person is found "sitting, surrounded.." it might be said that the combination of these two images could give the reader a vision of what the writer is trying to convey.
Answer:
A whirlpool is powered by water but a black hole is powered by gravity.
Explanation:
Contrasting means to compare items and the difference between them. This sentence explains how different whirlpools are from black holes. The other responses should be incorrect because they only focus on a single item, a black hole.
B is the best option i think
The art of taking beautiful pictures of sceneries, people, animals etc. for visual pleasure or to give ideas is known as photography.