Only 3% of the water on earth is usable by humans. even though that 3% is through the water cycle, we still need to be careful not to waste water.

you would expect a sound wave to speed up. - b)

i feel your pain too because i cant find my dad and hes been missing for 17 years of my life

explanation:

he went to the supermarket with your dad

e

explanation:

there is no change in the electric potential energy as it is in rest on both conditions.