The independent variable is the one thing you: a. change b. experiment with c. keep the same d. investigate

Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.

How many pounds does the earth weigh?

Which of the following terms describes water that is safe to drink? clean filtered potable sterilized