A kind of glacier called a(n) forms when ice and snow build up in a mountain valley.

What's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it

When the soviets created the borders of their central asian and caucus republics, the paid little attention to where each region’s ethic group lived. ethnic-related disputes exist along every sherd boundary in central asia. true false

Which country in the video has the highest population growth rate?