Question

This text is from the transcript of the video "Adélie Penguins" from the NOAA web site Ocean Today.

Studies show that since 1950, the western Antarctic peninsula winter has warmed 11 °F, five times the global average. This warming trend is decreasing the amount of sea ice that forms and shrinking the habitat where young krill grow. This puts the Adélies’ food supply and their breeding success at risk. Complicating matters, Gentoo and Chinstrap penguins, which favor conditions with less sea ice, are taking over some of the Adélie colonies in this area.
Which statement is supported by both the text and the excerpt above?

A.
All three penguin species, Chinstrap, Adélie, and Gentoo, live only on sea ice.

B.
The food supply for Adélie penguins includes both fish and krill in the Antarctic seas.

C.
Adélie penguins are dependent on the existence of sea ice for access to their food supply.

D.
Temperatures in the Antarctic have increased substantially in the last 60 years.

Answer 1

C.

Adélie penguins are dependent on the existence of sea ice for access to their food supply.

Explanation: Their numbers are declining due to the loss of sea ice, so it's natural that this would be the answer.