Question

Match the statements in Column A, with those in Column B.
1. A device for lifting groundwater.
2.A device used to find atmospheric pressure and uses mercury.
3.A device used to find atmospheric pressure which does not use mercury.
4. A valve in the common water pump which does not allow the water to flow back
column B
a. Mercury barometer .
b. foot valve.
c.common water pump.
d. Android barometer

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Answer 1

Answer:

1.A device for lifting groundwater --- c.common water pump.

2.A device used to find atmospheric pressure and uses mercury.---a. Mercury barometer .

3.A device used to find atmospheric pressure which does not use mercury. ---d. Android barometer

4. A valve in the common water pump which does not allow the water to flow back---b. foot valve.