How Humans Reduce Biodiveristy
This lesson covers:
- What biodiversity is and why it's so important
- How humans reduce biodiversity
- How waste contributes to water, land and air pollution
What is biodiversity?
The variety of living things on earth, or within a particular ecosystem
The difference in how animals look
The number of individuals of a particular species in a habitat
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Give three reasons why maintaining high biodiversity is important.
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Select two impacts of rapid growth in the human population.
Fewer resources are being used
More resources are being used
Less waste is being produced
More waste is being produced
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As humans produce more and more waste, it pollutes the water, land and .
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Which two of the following substances contribute most to water pollution?
Sewage from cities
Acidic gases from burning fossil fuels
Fertiliser from agriculture
Nuclear waste
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Which two of the following substances contribute most to air pollution?
Landfill
Acidic gases from burning fossil fuels
Smoke from combustion
Sewage from cities
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Which two of the following substances contribute most to land pollution?
Landfill
Sewage from cities
Nuclear waste
Smoke from industry
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