AQA Environmental science Antarctica

Average Antarctic temperature on land

• -49^oC

• -10^oC

• -60^oC

• -69^oC

Average range of Antarctic sea temperature

• -49^oC to -60^oC

• -5^oC to -10^oC

• -1.8^oC to +3.5^oC

• -10^oC to +5^oC

Antarctica is a land mass covered in ice and snow. How deep can the ice reach?

• 200meters

• 400 meters

• 4800 meters

• 7000 meters

The coastal regions around Antarctica have a high level of marine nutrients. What are the reasons for this?

• High level of storms

• Nutrient input from rivers

• Fertilizer run off from land

• Coastal upwelling

Ice helps with controlling global temperatures. Which statement is correct?

• Ice has a low albedo and so will reflect UV back out to space and less is absorbed and converted into IR

• Ice has a high albedo and so will reflect UV back out to space and less is absorbed and converted into IR

• Ice has a high albedo and so will reflect IR back out to space and less is absorbed and converted into UV

• Ice has a Low albedo and so will absorb UV and reflect IR back out to space

How might warmer global temperatures affect glacial movement in Antarctica

• Glaciers could move more slowly towards oceans due to melt water making less heavy.

• Glaciers could move more rapidly towards oceans due to melt water acting as a lubricant.

• Glaciers could move more rapidly towards oceans due more snowfall

• Glaciers could move more slowly towards oceans due thicker sea ice holding them back

How might a decrease in ozone affect Antarctica

• Less UV absorbed in the stratosphere which can then ionize phytoplankton affecting food webs.

• Less UV absorbed in the troposphere which can ionize phytoplankton affecting food webs

• Less IR absorbed in the stratosphere which can then ionize phytoplankton affecting food webs.

• Less IR absorbed in the troposphere which can ionize phytoplankton affecting food webs

What are the risks to Antarctica from tourism

• New diseases brought in from humans

• Invasive species brought in from boats

• Waste such as faeces, plastics and oils.

• Taking photos and raising awareness

Which species is most affected by a reduction of Ozone

• Phytoplankton and Krill

• Krill and small fish

• Small fish and penguins

• Penguins and leopard seals

Which two resources are currently exploited from Antarctica

• Minerals

• Oil

• Krill

• Fish