Forest decline, like this, is a new phenomenon that is directly related to the activities of man on earth. high altitude defoliation is common in the eastern united states, europe, and japan due to the effects of

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes