Answer:
A
Explanation:
if you hide a storm drain it really doesn't do much because it doesn't clean the water, and all of the other options do clean water of contaminants.
Its important because it tells us the difference between populations and individuals
Science can answer many questions for example the speed of light, the frequency of pitch or sound, dna tests
G) The objects must be different temperatures
The way that heat transfer works is that the warmer object transfers energy to the colder one in order to reach equilibrium
