Read the introduction [paragraphs 1-7].
Select the sentence from the article that suggests that Earth's spheres can interact with one another.
(A)
Everything in Earth's system can be placed into one of four major subsystems: land,
water, living things or air.
(B)
(C)
(D)
Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere"
(living things), and "atmosphere" (air).
The hydrosphere extends from Earth's surface downward several kilometers into the
lithosphere and upward about 12 kilometers into the atmosphere.
Within the biosphere, living things form ecological communities based on the
physical surroundings of an area.