Which sentence could be added to the passage to support the main idea?
A.
Recently, water has been discovered on Mars, making it seem more possible that life could exist there.
B.
Other planets, seen through telescopes, show signs of volcanic activity, much like our Earth.
C.
Probes we have sent into space have brought back data on other planets that are too far to ever visit.
D.
Also, the Earth's tilt and its distance from the sun means we have mild seasons that humans can withstand.

also, the Earth's tilt and its distance from the sun means we have mild seasons that humans can withstand.

Explanation:

the main idea of the passage is that earth is the only planet that can support life. the correct answer gives two more reasons why this is so: our distance from the sun and the tilt of the earth, which allows us to have mild seasons. if this were not the case, temperatures would be too extreme to support life.

(you didn't attach a copy of the poem, but i'm answering as best as i can)

since a simile compares two unlike things using like or as, it kind of gives an item the ability to do something it can't.

example: "the player was like a tiger on the field"

in this sentence, the simile conveys the idea that the player was fast and strong, like a tiger.