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twinchristiansp4xhd2
07.07.2019 •
Biology
Why does earth have more gravitation pull than the moon
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Ответ:
Ответ:
This is because gravitational force is directly proportional to the mass of an object. Greater the mass, greater will be the gravitational force exerted by it and thus, more will be our weight. As the moon has lesser mass than the earth, it has a weaker gravitational pull and hence, we weigh less on the moon.
Ответ:
Atrium
Ventricles
Explanation:
The upper chambers of the heart are called atrium whereas the lower chambers are called ventricles.
The heart is at the center of the circulatory system which moves blood round the body.
At the atrium, blood returning from the lungs and body parts fills up this part of the heart. It is divided into a left and right atrium. The ventricles pumps blood out of the heart into the body parts and lungs. It has a thicker wall.