If the direction of earth's rotation reversed, which of the following would occur
a) the elimination of ocean currents
b) a big change in the length of the year
c) winds blowing from west to east along the equator
d) a loss of seasonal variation at high latitudes

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