Question

define heart for class 7 th ​

Answer 1

Answer:

the the measure of hotness or coldness of an object is termed as heat.

Answer 2

Explanation:

heart is pumping station of the body, which pumps the blood to all the part of the body. the size of heart is approximately Or roughly like over closed fist. heart receives the deoxygenated

blood from the cell ( used blood full of CO2) and convert this blood into oxygenated blood( full of O2).