How does the snow in the polar regions help with climate change

Prompt compare the three types of volcanic mountains in terms of shape, type of eruption, and the minerals that make up the volcano

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat