Which detail from paragraph 2 supports the key idea that deserts are difficult environments?

Question

Question 1 options:

Desert support populations of creatures that thrive in extreme ecosystems.

Deserts have little water and temperatures that vary greatly between night and day.

Deserts provide a habitat primarily for animals with unique abilities.

Deserts are extreme ecosystems because there are not many people.

Answer 1

The detail from paragraph 2 that supports the key idea that deserts are difficult environments is "Deserts have little water and temperatures that vary greatly between night and day."