(ii) Describe TWO negative environmental impacts of aquafarming.
(b) Describe TWO methods that can be employed in aquaculture to lessen
the environmental impact.
(c) How is raising and harvesting kelp and bivalve mollusks a more
sustainable method of aquafarming than raising and harvesting higher
trophic order fish such as salmon?
(d) The newspaper announcement claims that aquafarming is the answer to
world hunger. Give TWO examples of how this statement may be
contrary to environmental sustainability.
- The diagrams below show the growth in the hole in the stratospheric ozone
layer over the Antarctic from 1979 to 1996.
