They are oxygen, carbon, hydrogen, and nitrogen.
It is "B. Cleaning a countertop with a sponge and
<span> rinsing it out to reuse" that represents and example of conservation. Re-using items is better than throwing them away if possible. </span>
I think it is D. You experience increase in breathing rate to obtain more oxygen which is delivered to cells through the bloodstream
Answer:
melting from ice cube to water
Explanation:
this is because the object gains heat and melting occurs in the object
