Question

After reading the paragraph, select the sentence that gives the main idea. A glacier is a river of ice. It starts as a pack of snow. When the winter snowfall is so great that it does not melt in the summer, it causes the pack to grow. The summer wind layers it with dirt, and it continues to build into a hard body of ice. The weight of the glacier moves it slowly downhill. Will give brainliest!!​

Answer 1

Answer: The first option doesn't make sense because no actual rivers are mentioned. It's just the "river of ice." The third option could be put into consideration but the second one makes the most sense because the paragraph goes over what happens to the glacier over the seasons. And over the seasons, the glacier grows (and melts.)

This isn't perfect, but I hope it helps! :)

Explanation: The paragraph tells how a glacier is formed.