Question

part b: which detail from the text best supports the answer to part a? a “earth is the only planet known to have large amounts of liquid water. liquid water is essential for life. earth is the only planet where life is known to exist.” (paragraph 3) b “earth has seasons because its axis is tilted. thus, the sun’s rays hit different parts of the planet more directly depending on the time of year.” (paragraph 9) c “earth’s parts once were seen as largely separate from each other. but now they are viewed together as the ‘earth system.’” (paragraph 16) d “nasa studies earth to learn about how the planet changes. earth’s parts — land, air, water and life — are always changing. some of the changes are natural and some are caused by humans.” (paragraph 18)

Explanation:

We need to find the detail from the text that best supports an answer to Part A. Option A emphasizes Earth's uniqueness in having liquid water which is essential for life, a key - point often associated with Earth's significance. Option B explains the cause of seasons. Option C describes how parts of Earth were once seen separately but now as a system. Option D mentions human - caused changes. Without knowing Part A, based on general understanding of Earth - related significance, the presence of liquid water is a fundamental characteristic.

Answer:

A. "Earth is the only planet known to have large amounts of liquid water. Liquid water is essential for life. Earth is the only planet where life is known to exist."