Question

some eazy line on hand pump for class 5th

Answer 1

Answer:

THIS IS ANSWER TO YOUR QUESTION.

Answer 2

Answer:

Some easy line on Hand pump is given below

Explanation:

hand pumping is the oldest way of of water .In villages it is very useful when electricity is not there. Hand pump was invented by Oscar Calsson. Hand pumps are manually operated pumps . They use human power and machanical advantage.