How does water rise from the roots of a tree

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

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

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above