Hailstones do a lot of damage when they fall to the earth and hit homes and cars with great force they hit was great force because theya) are made of ice b) melt as they fallc) accelerate as they fall to earthd) have a huge mass compared to the other falling objects

They accelerate as they fall to Earth

answer; ///as energy flows through an ecosystem,energy (decreases) at each

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.