Question

the hydrosphere refers to the total amount of water on earth, including liquid, gas, and solid forms. which is one way the hydrosphere has been impacted by the movement of the continents over time?
glaciers that once covered south africa no longer form
all of the continents have fewer coastal areas than they did millions of years ago
land masses near the equator have more glaciers now than they did millions of years ago
the poles that were once covered by glaciers are now surrounded by warm, tropical waters

Explanation:

To determine the correct answer, we analyze each option in the context of how continental movement (plate tectonics) impacts the hydrosphere. The hydrosphere's distribution (glaciers, coastal areas, land near equator, polar regions) is affected by continental drift over time. Glaciers once covering South Africa melting (option 1) is due to climate change/continental movement altering temperature zones. But the key is identifying which is impacted by continental movement over time. Wait, re - evaluating: The question is which is a way hydrosphere is impacted by continental movement over time. Continental movement (plate tectonics) over millions of years changes land - water distributions. Glaciers in South Africa (once part of a different climate zone due to continental drift) melting as continents moved, changing their position and climate. But let's check options:

1. Glaciers that once covered South Africa have melted and can no longer form: Continental drift moved South Africa to a warmer climate zone, so glaciers melted and can't reform. This is an impact of continental movement (changing land position, hence climate and hydrosphere - glacier presence).

1. All continents have fewer coastal areas than millions of years ago: Continental movement (drift, collision) can change coastlines, but "all" is too absolute.

1. Land masses near equator have more glaciers now than millions of years ago: Equator is warm, glaciers are less likely now than in a different geological time when equatorial regions might have been cooler due to continental positions. So this is incorrect.

1. Poles once covered by glaciers now surrounded by warm, tropical waters: Poles are still cold, and continental movement doesn't move poles to tropical regions. This is incorrect.

So the correct option is the first one: Glaciers that once covered South Africa have melted and can no longer form.

Answer:

A. Glaciers that once covered South Africa have melted and can no longer form