Why is heart called as pumping organ and what is heart beat ? what is its rate?

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- It is known as the pumping organ because it does exactly that. It pumps blood around our body so it can reach where it's needed.

A heartbeat is the contractions your heart makes

An average heart rate at rest is between 60 and 100 a minute.

This value would increase if you do some form of activity

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that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."