The Atria Are the Heart's Entryways for Blood
The left atrium and right atrium are the two upper chambers of the heart. The left atrium receives oxygenated blood from the lungs. The right atrium receives deoxygenated blood returning from other parts of the body.
The heart
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Explanation:
D. A change in the amount of polar ice will alter how ocean currents move.
Depends in the weight of tge objects, but they will be drawb together
