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The pressure of the Earth's atmosphere a...

The pressure of the Earth's atmosphere at sea level is due to the ………….. .

A

gravitational attraction of the Earth for the atmosphere

B

evaporation of water from the seas and oceans

C

fact that most living things constantly breathe air

D

heating of the atmosphere by the Sun

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The correct Answer is:
A
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FULL MARKS-PROPERTIES OF MATTER-Additional Questions Solved - Choose the Correct Answers
  1. The pressure in a liquid at a given depth below the surface ………….. .

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  2. The pressure at the bottom of a liquid tank does not depends on ………….....

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  3. The pressure of the Earth's atmosphere at sea level is due to the …………...

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  4. The operating principle of a hydraulic press is …………… .

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  5. A floating body always diplaces its own ………….. .

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  6. The pressure in a water tap at the base of a building is 3 xx 10^(6) "...

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  7. The weight of a body in air is 100 N. How much will it weight in water...

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  8. A body is floating in a liquid with 1/5 of its volume outside the liqu...

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  9. A boat having length 3 m and breadth 2 m is floating on a lake. It sin...

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  10. A bird weighs 2 kg and is inside an airtight cage of 1 kg. If its star...

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  11. Two light balls are suspended as shown in the figure. When a stream of...

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  12. The rate of leak from a hole in a tank is ………………. .

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  13. When a fluid passes through the constricted part of a pipe, its………….. ...

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  14. Bernoulli's principle does not explain ………………. .

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  15. An ideal liquid flows through a horizontal tube of variable diameter. ...

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  16. Bernoulli's equation is applicable in the case of ………… .

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  17. Bernoulli theorem is based on conservation of

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  18. Bernoulli's theorem is applicable to …………….. .

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  19. The working of an atomiser depends on …………. .

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  20. Dynamic lift' is related to ………….. .

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