Phosphorus Cycle
Flashcard
•
Biology
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the phosphorus cycle?
Back
The phosphorus cycle is the process by which phosphorus moves through the lithosphere, hydrosphere, and biosphere. It involves the weathering of rocks, absorption by plants, consumption by animals, and return to the soil through decomposition.
2.
FLASHCARD QUESTION
Front
What is an algal bloom?
Back
An algal bloom is the rapid growth of a population of algae in water bodies, often due to excess nutrients, particularly phosphorus and nitrogen.
3.
FLASHCARD QUESTION
Front
What is the primary source of phosphorus in the environment?
Back
The primary source of phosphorus in the environment is the weathering of rocks that contain phosphorus minerals.
4.
FLASHCARD QUESTION
Front
How do decomposers contribute to the phosphorus cycle?
Back
Decomposers break down dead organic matter, returning phosphorus to the soil, making it available for plants.
5.
FLASHCARD QUESTION
Front
What happens to phosphorus in aquatic ecosystems?
Back
In aquatic ecosystems, phosphorus can lead to algal blooms when it is present in excess, disrupting the balance of the ecosystem.
6.
FLASHCARD QUESTION
Front
What is the role of plants in the phosphorus cycle?
Back
Plants absorb phosphorus from the soil, which is essential for their growth and development.
7.
FLASHCARD QUESTION
Front
How does phosphorus move from land to water bodies?
Back
Phosphorus moves from land to water bodies through runoff, especially after rainfall, carrying soil and nutrients into rivers, lakes, and oceans.
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