Describe some of the obstacles that come with space mining.

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Which describes the changes in the earths motion?