Unit 6 Practice Questions

Unit 6 Practice Questions

Assessment

Flashcard

Science

8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the primary source of energy for plants like grass?

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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