? Can y’all help me with this answer

Is snow a type of precipitation? explain why or why not.

Which event would lead to primary succession of a forest?

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