Human Influences on the Environment

IGCSE Biology review of human influences on the environment

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1. Human activities which threaten species with extinction are: hunting of individual species, over-exploitation of stocks (e.g. over-fishing), destruction of habitats (deforestation, agriculture, urbanisation).

  • True
  • False
1 of 25

Other questions in this quiz

2. ___ _________ is a compound which destroys or controls any organism which is considered to be harmful to our interests

  • A herbicide
  • A pesticide
  • An insecticide

3. ___ ____________ destroys or controls populations of insects, preferably only those thought to be

  • A herbicide
  • An insecticide
  • A pesticide

4. ____ _____________ kills or controls plants which humans want to get rid of, e.g. weeds.

  • A herbicide
  • A pesticide
  • An insecticide

5. The principal sources of excessive nitrate and phosphate in rivers and lakes are sewage effluents and intensive agriculture.

  • True
  • False

Comments

Callum Pullen

well this is enlightening

Chris

*EutropHication

*Ensure

Swallowtail

A long challenging quiz on human influences on the environment. Try the quiz after you have revised this section and then look up the answers to any questions you get wrong. (If any).

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