Questions: Question 33(Multiple Choice Worth 4 points)
Which type of ice does not raise sea levels as it melts?
Land ice
Sea ice
Glaciers
Black ice
Transcript text: Question 33(Multiple Choice Worth 4 points)
Which type of ice does not raise sea levels as it melts?
Land ice
Sea ice
Glaciers
Black ice
Solution
The answer is the second one (B): Sea ice.
Explanation for each option:
Land ice: Incorrect. Land ice, such as glaciers and ice sheets, is found on land. When it melts, it contributes to rising sea levels because it adds water to the ocean that was previously stored on land.
Sea ice: Correct. Sea ice forms and floats on the ocean's surface. When it melts, it does not raise sea levels because it is already displacing water. The melting of sea ice is similar to ice cubes melting in a glass of water; the water level remains the same.
Glaciers: Incorrect. Glaciers are large masses of land ice. When they melt, they contribute to rising sea levels by adding water to the ocean.
Black ice: Incorrect. Black ice refers to a thin layer of ice on roads or pavements, not a type of ice that affects sea levels. It is not relevant to the context of sea level changes.
In summary, sea ice does not raise sea levels as it melts because it is already floating on the ocean.