Earth’s mantle is made of a dense thick material that allows movement of crustal plates. crustal plate movement occurs because the mantle flows as a result of uneven heating inside the mantle. are created by very hot material deep in the mantle rising, then cooling, sinking again, and then heating again and then repeating the cycle.

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