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 number of individuals of a particular species in a habitat
The difference in how animals look
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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.
More waste is being produced
Less waste is being produced
More resources are being used
Fewer resources are being used
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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?
Nuclear waste
Sewage from cities
Fertiliser from agriculture
Acidic gases from burning fossil fuels
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Which two of the following substances contribute most to air pollution?
Acidic gases from burning fossil fuels
Sewage from cities
Smoke from combustion
Landfill
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Which two of the following substances contribute most to land pollution?
Landfill
Smoke from industry
Sewage from cities
Nuclear waste
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