one math class studies for an assesment while the math class next door does not the scores of the two classes are compared. which is independent and dependent varible

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

Modern weaponry has increased the number of deaths in wars and violent conflicts.