D iş the answer...........
Hi!
The answer is B) Atmosphere and Geosphere<span>
Hope this helps!
-Payshence xoxo</span>
Answer:
By cooling the heart, its need for oxygen is reduced. This allows surgeons to work on the heart for two to four hours without damaging the heart tissue.
<span>Explanation: Oxygen is the more electro-negative of the atoms in the water molecule, so it tends to pull the 'shared' electron more to itself. Thus, the oxygen atom has a greater time-share of all electrons, and therefore the hydrogen atoms are more positive for a partial lack of electrons</span>
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The answer you chose is right
