What is the primary source of energy for plants like grass?
Unit 6 Practice Questions

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Science
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8th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
The Sun.
2.
FLASHCARD QUESTION
Front
What is biodiversity?
Back
Biodiversity refers to the variety of life in a particular ecosystem, including the number of different species.
3.
FLASHCARD QUESTION
Front
What is a keystone species?
Back
A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance.
4.
FLASHCARD QUESTION
Front
What happens to an ecosystem when biodiversity is reduced?
Back
It can lead to reduced ecosystem resilience, making it less able to recover from disturbances.
5.
FLASHCARD QUESTION
Front
What is the impact of human-induced climate change on ocean acidity?
Back
Human-induced climate change increases ocean acidity.
6.
FLASHCARD QUESTION
Front
What are algal blooms?
Back
Algal blooms are rapid increases in the population of algae in water bodies, often due to excess nutrients.
7.
FLASHCARD QUESTION
Front
What is agricultural runoff?
Back
Agricultural runoff is water from rain or irrigation that carries fertilizers, pesticides, and other pollutants from agricultural land into nearby water bodies.
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