ASA
how do 2 positive charge move in an electric field

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?