20
QuizMultiple Choice

Ecosystem Interactions and Energy — Test

Question 20 • 26-27 - C - RUSD Biology in the Living Earth

Which describes a way in which phosphorus may enter into the phosphorus cycle?

Answer
A
Phosphorus is carried in the rain that was evaporated from lakes.
B
Phosphorus is transpired from the leaves of plants.
C
Human use of fertilizers release phosphorus into the groundwater.
D
Earthquakes release phosphorus.

Explanation

Phosphorus can enter groundwater when rain or irrigation carries phosphorus from fertilizers through the soil. This makes human use of fertilizers a way phosphorus moves into the phosphorus cycle. Water evaporating from lakes and transpiration from leaves generally do not carry phosphorus into the atmosphere, and earthquakes are not the described route here.

AI-written and checked against the verified answer.

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