Which statement is true about water molecules?

the oxygen atom has a negative charge.
the hydrogen atoms do not share electrons.
water molecules move randomly around each other.
water molecules cannot dissolve many substances

Lactic acid and energy are produced in muscle cells during choose 1 aerobic respiration cellular respiration anaerobic respiration cellular division

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

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