Biology Topic Practice

Environmental Change

Changes in the environment, whether seasonal, geographic, or human-caused, affect where organisms live.

Can you name one seasonal change that affects animal distribution?

What is Environmental Change?

"Environmental change refers to any alteration in the environment, often caused by human activity or natural ecological processes."

Question 1

What is biodiversity?

Question 2

Which type of pollution can lead to eutrophication in lakes and rivers?

Question 3

Why can high biodiversity help keep an ecosystem stable?

Changing Conditions

Temperature: Many species are moving towards the poles as the climate warms.

Water availability: Changes in rainfall patterns can cause migration or death.

Atmospheric gases: Pollution can drive away sensitive species (like lichens).

Exam Tip

Seasonal changes include bird migration and trees losing their leaves in autumn.

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