Answer:
c is the answer
because if solids moved quikly and freely they wouldn't be so hard like compared to a liquid and it free shape.
Answer the one i just posted
"an advantage of gas exchange in fresh water, compared with gas exchange in air, is that water loss through evaporation across the respiratory surface can be minimized." The primary function of the lungs involving the transfer of oxygen from inhaled air into the blood and the transfer of carbon dioxide from the blood into the exhaled air.
We have Protons and Neutrons in the nucleus of an atom, Protons are positively charged, neutrons are non-charged particles.
Prolactin is the hormone that stimulates milk production
