What is the natural greenhouse effect?
Semester 1 Final (Biology)

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Science
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9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The natural greenhouse effect is the process by which certain gases in Earth's atmosphere trap heat, keeping the planet warm enough to support life.
2.
FLASHCARD QUESTION
Front
What are alternative energy sources?
Back
Alternative energy sources are energy sources that are not based on fossil fuels, such as solar, wind, hydroelectric, and geothermal energy.
3.
FLASHCARD QUESTION
Front
What is the difference between weather and climate?
Back
Weather refers to short-term atmospheric conditions, while climate is the long-term average of weather patterns over a significant period.
4.
FLASHCARD QUESTION
Front
What is a density-independent factor?
Back
A density-independent factor is an environmental factor that affects a population regardless of its density, such as natural disasters like tornadoes.
5.
FLASHCARD QUESTION
Front
What is the role of the circulatory system?
Back
The circulatory system is responsible for transporting oxygenated blood throughout the body and returning deoxygenated blood to the heart.
6.
FLASHCARD QUESTION
Front
What is the role of the nervous system in the body?
Back
The nervous system controls and coordinates body activities by transmitting signals between different parts of the body.
7.
FLASHCARD QUESTION
Front
What are fossil fuels?
Back
Fossil fuels are natural substances formed from the remains of ancient plants and animals, used as energy sources, including coal, oil, and natural gas.
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