Edward Saade is investigating the question How deep is the ocean floor in different places? What evidence did he use to help answer his question.

How much of the united states’ electric generation comes from coal? a. about 25% b. about 50% c. about 75% d. about 90%

In 1933 the 21st amendment was added to the u.s. constitution, allowing for the manfacture, transportation, and sale of alacoholic beverages in the united states. why was this amendment needed?

Plants can have a positive and negative effect on the rate of weathering