Biogeochemical Cycles Study Guide
Flashcard
•
Biology
•
10th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a biogeochemical cycle?
Back
A biogeochemical cycle is the movement of elements and compounds through living organisms and the physical environment, involving biological, geological, and chemical processes.
2.
FLASHCARD QUESTION
Front
What is the greenhouse effect?
Back
The greenhouse effect is the warming of Earth's surface due to the trapping of heat by greenhouse gases like carbon dioxide, methane, and water vapor.
3.
FLASHCARD QUESTION
Front
What are fossil fuels?
Back
Fossil fuels are natural substances formed from the remains of ancient plants and animals, including coal, oil, and natural gas, used as energy sources.
4.
FLASHCARD QUESTION
Front
What is eutrophication?
Back
Eutrophication is the process by which water bodies become overly enriched with nutrients, leading to excessive growth of algae and depletion of oxygen.
5.
FLASHCARD QUESTION
Front
What role do nitrogen-fixing bacteria play in the nitrogen cycle?
Back
Nitrogen-fixing bacteria convert atmospheric nitrogen into nitrates or ammonia, which plants can absorb and use for growth.
6.
FLASHCARD QUESTION
Front
What is an algae bloom?
Back
An algae bloom is a rapid increase in the population of algae in water bodies, often due to excess nutrients, which can harm aquatic life.
7.
FLASHCARD QUESTION
Front
How does deforestation affect the carbon cycle?
Back
Deforestation reduces the number of trees that can absorb carbon dioxide, leading to increased levels of CO2 in the atmosphere and contributing to global warming.
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