How Humans Reduce Biodiveristy

Cards (7)

What is biodiversity?
The variety of living things on earth, or within a particular ecosystem
Give three reasons why maintaining high biodiversity is important?
It increases the stability of the ecosystem, so that changes are less likely to have adverse affects
Many species provide specific services, such as pollination
Many of our medicinal drugs come from wild species
Select two impacts of rapid growth in the human population?
More waste is being produced
More resources are being used
As humans produce more and more waste, it pollutes the water, land and air
What two substances contribute most to water pollution?
Fertiliser from agriculture
sewage waste from cities
What two substances contribute most to air pollution?
Smoke from combustion
Acidic gases from burning fossil fuels
What two substances contribute most to land pollution?
Nuclear waste
landfill