What is pack ice?
(1 point)
Responses
large masses of compressed ice that cover land
large masses of compressed ice that cover land
large, slow-moving bodies of ice that move over land
large, slow-moving bodies of ice that move over land
large, floating masses of ice where groups of penguins live
large, floating masses of ice where groups of penguins live
large, seasonal masses of ice that form and float on water
large, seasonal masses of ice that form and float on water
Why is the ozone layer in Antarctica significant?
(1 point)
Responses
It is getting thinner, allowing more harmful ultraviolet rays to reach Earth.
It is getting thinner, allowing more harmful ultraviolet rays to reach Earth.
It is a valuable natural resource, but harvesting it could harm native wildlife.
It is a valuable natural resource, but harvesting it could harm native wildlife.
It exists nowhere else, so scientists must travel there to study its properties.
It exists nowhere else, so scientists must travel there to study its properties.
It could grow dangerously large if climate change continues.