They use a hygrometer. It measures relative humidity (the amount of moisture in the air) A psychrometer is an example of a hydrometer
Blood clots form when platelets and plasma proteins thicken to form a sort of solid mass. They can form from an injury, blood flowing slowly through your system, or even for no obvious reason.
The answer is A
Because that would be the correct angle at the degree point which is pointing toward the top right
What controls what molecules pass in and out of a cell?
