Why has the temperature of the Arctic Ocean changed during the last 40 years?
(1 point)
○ Less snow falls in the Arctic now than 40 years ago.
○ Sea ice has melted, allowing more sunlight to hit the ocean.
(1 point)
○ Less snow falls in the Arctic now than 40 years ago.
○ Sea ice has melted, allowing more sunlight to hit the ocean.