8th Grade Science : 8th Grade Science

Study concepts, example questions & explanations for 8th Grade Science

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Example Questions

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Example Question #1 : Life Science

Fill in the blank: 

When a species becomes better suited to its environment, it's said that the species has __________. 

Possible Answers:

grown

mutated 

evaporated 

adapted 

Correct answer:

adapted 

Explanation:

Adaptation is the processes in which a species becomes better suited to its environment; thus, the correct answer is adapted. 

When a species becomes better suited to its environment, it's said that the species has adapted. 

Example Question #11 : 8th Grade Science

Which of the following is a cause of extinction?

Possible Answers:

All options are correct 

Agriculture 

Habitat Fragmentation 

Deforestation 

Correct answer:

All options are correct 

Explanation:

There are many causes of extinction. Agriculture, habitat fragmentation, and deforestations are all causes of extinction. 

Agriculture causes extinction by emitting toxins into the environment.

Habitat fragmentation causes extinction by changing an animals habitat. Usually, habitat fragmentation is caused by development breaking apart an animal's habitat. 

Deforestation causes extinction by taking away animals's habitats. Deforestation is when forests are cut down. 

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