What happened to the Arctic Ocean during the past 40 years?(1 point)ResponsesIt has become less salty.It has become less salty.It has become warmer.It has become warmer.It has gained more sea ice.It has gained more sea ice.It has grown smaller.It has grown smaller.
9 answers
It has become warmer.
How much of Earth is comprised of ice?(1 point)Responsesabout 30 percentabout 30 percentabout 10 percentabout 10 percentabout 70 percentabout 70 percentabout 90 percent
about 10 percent
Which feature of Earth would reflect the greatest amount of incoming sunlight?(1 point)Responsesice covered by snowice covered by snowsea icesea icelight ocean waterlight ocean waterdark ocean water
ice covered by snow
What is the effect of changing temperature on the Arctic Ocean as observed by scientists over the last few decades?(1 point)ResponsesThere are more areas of open ocean.There are more areas of open ocean.There are more places with cold water.There are more places with cold water.There is less saltwater.There is less saltwater.There is more sea ice.
There are more areas of open ocean.
Why has the temperature of the Arctic Ocean changed during the last 40 years?(1 point)ResponsesMore sunlight now reaches Earth than in the past.More sunlight now reaches Earth than in the past.Less snow falls in the Arctic now than 40 years ago.Less snow falls in the Arctic now than 40 years ago.Sea ice has produced more salt, causing the cold ocean water to sink.Sea ice has produced more salt, causing the cold ocean water to sink.Sea ice has melted, allowing more sunlight to hit the ocean.
Sea ice has melted, allowing more sunlight to hit the ocean.
96 answers