Which describes a way in which phosphorus may enter into the phosphorus cycle? Earthquakes release phosphorus. Phosphorus is carried in the rain that was evaporated from lakes. Human use of fertilizers release phosphorus into the groundwater. Phosphorus is transpired from the leaves of plants.

The most common form of entry of the phosphorus is by human use of the fertilizers which is released into the groundwater.

Explanation:

Most of the fertilizers being used in agriculture contains nitrogen and phosphorus which is carried to the aquatic ecosystem through surface runoff. When the tropical rain forest are cut down by humans and fertilizers are being used in large amounts the nutrients stored in plants or rocks are washed by the heavy rains and they reach groundwater or other water bodies. Therefore, the humans alter the natural phosphorus cycle majorly in several mentioned ways.

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