What is one of the main differences between the phosphorus and sulfur cycles? A) Plants absorb phosphorus mainly from the air an
d sulfur mainly from the soil. B) Animals get phosphorus by eating plants and sulfur from the air they breathe. C) Human activities contribute only to the amount of sulfur in the atmosphere but not to that of phosphorus. D) The atmosphere has no significant role in the phosphorus cycle, but is an essential part of the sulfur cycle.
The answer is <span>D) The atmosphere has no significant role in the phosphorus cycle, but is an essential part of the sulfur cycle.
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<span>Phosphorus is not abundant in the atmosphere. It comes mostly from the land and ocean. Phosphorus cycle through the lithosphere, hydrosphere, and biosphere, but not the atmosphere. The reason for this is that phosphorus cannot be found in the gas state, unlike the sulfur. On the other hand, sulfur cycle partially occurs in the atmosphere.</span>
