The movement of an object around another object is called revolution. In this illustration, the earth is moving around the sun. Another example of a revolution involves the movement of the moon around the

B.a pop up at ion changes in response to a change in the environment.

Answerhave flowing water either episodically or during only a portion of the year;

The scientist can conclude that there is a decrease in the natural resources due to human activities. because of innovation and modernization of the environment, then there goes pollution and other bad effects that destroys the natural resources.