Ecosystem Balance Quiz

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Ecosystem Balance Quiz

Which of the following is not an example of something that can cause a natural change in an ecosystem?

Agricultural fertilisers

tsunami

Drought

Correct! Wrong!

Which of the following is not an example of a human factor that can cause change in an ecosystem?

Hedgerows removed to increase field size

Deforestation

Reintroduction of a tertiary consumer

Drought

Correct! Wrong!

Which of the following is unlikely to occur due to the reintroduction of perch (predator) to a lake?

Animals further up the food chain, such as herons, will have less food.

There will be an increase in the population of organisms below frogs in the food chain.

There will be a decrease in the population of organisms below frogs in the food chain.

Perch will consume more smaller fish and animals like frogs.

Correct! Wrong!

True or false? The reintroduction of wolves to Yellowstone National Park has had a positive impact on the ecosystem.

False

True

Correct! Wrong!

True or false? Climate change can have a negative impact on pond ecosystems.

True

False

Correct! Wrong!

Water levels of ponds can be affected by drought caused by climate change. This can put stress on the ecosystem or even destroy it if it dries out.

True or false? A healthy, sustainable ecosystem can take many hundreds of years to develop. Its success depends on many complex interrelationships that exist within the ecosystem.

False

True

Correct! Wrong!

Which of the following is not an example of a natural change in an ecosystem?

Hunting or trapping animals or birds

Fire caused by lightening strikes

Spread of invasive species

Correct! Wrong!

Which of the following is not an example of human-induced ecosystem change?

Extreme weather events such as drought.

Introduction of alien species

Altering water and soil within an ecosystem

Correct! Wrong!

True or false? The introduction of alien species may happen naturally or through human activities.

True

False

Correct! Wrong!

The influx of nutrients in a pond from fertilisers on farmland can lead to the rapid growth of algae in ponds, depriving other organisms of oxygen. What is this process known as?

Eutrophication

Nutrientation

Fertilisation

Correct! Wrong!

WB3

Well done! You have a good understanding of this area of geography.

Good try, you could do with revising this area a bit more though.

Oh dear, you definitely need to work on this area.

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