MCQ on Atmospheric Pressure

1. What defines atmospheric pressure?
(a). Force exerted by water molecules
(b). Force exerted by air molecules
(c). The force exerted by gravitational pull.
(d). Force due to Earth’s rotation

Answer
           B

2. How is atmospheric pressure measured?
(a). Kilogram
(b). Millibar
(c). Celsius
(d). Meter

Answer
           B

3. How do barometers measure atmospheric pressure?
(a). Weighing the clouds
(b). Balancing against the wind force
(c). Measuring gravitational pull
(d). Countering atmospheric pressure

Answer
           D 

4. What does the horizontal distribution of air pressure indicate?
(a). Change in temperature
(b). Wind speed
(c). Change in pressure
(d). Humidity level

Answer
           C

5. What are the factors affecting air pressure?
(a). Time of day
(b). Cloud cover
(c). Height
(d). Ocean currents

Answer
           C

6. What shape are the pressure belts around the Earth?
(a). Ocean currents
(b). Temperature gradient
(c). Solar flares
(d). Lunar cycle

Answer
           B

7. What is the primary function of atmospheric circulation?
(a). Redistribution of heat and moisture
(b). Creating a storm
(c). Regulating cloud formation
(d). Maintaining the ozone layer

Answer
           A

8. What primarily drives the tricellular circulation model?
(a). Gravitational pull
(b). Ocean currents
(c). Temperature gradient and Coriolis effect.
(d). Solar radiation

Answer
           C

9. Which cells are part of the tricellular circulation model?
(a). Newton cells
(b). Maxwell cells
(c). Hadley cells
(d). Ferrel cells

Answer
           C

10. What weather phenomena are affected by the Walker circulation?
(a). Arctic weather patterns
(b). Antarctic weather patterns
(c). Tropical Pacific weather events
(d). European weather phenomena

Answer
           C

11. How do isobars contribute to weather maps?
(a). Indicate cloudy weather
(b). Show areas with low humidity
(c). Visualize the change in atmospheric pressure
(d). Predict snowfall

Answer
           C

12. How does altitude affect atmospheric pressure?
(a). Increases with height
(b). Decreases with height
(c). Remains constant with height
(d). Peaks at sea level

Answer
           B

13. Which instrument is not used to measure atmospheric pressure?
(a). Thermometer
(b). Barometer
(c). Anemometer
(d). Altimeter

Answer
           A

14. What is the characteristic of the equatorial low pressure belt?
(a). Strong winds
(b). Dry conditions
(c). High pressure system
(d). Low humidity

Answer
           A

15. What drives atmospheric circulation?
(a). Rotation of the Earth
(b). Gravitational pull
(c). Solar radiation
(d). Magnetic field

Answer
           C

16. What are the major components of atmospheric pressure?
(a). Nitrogen and oxygen
(b). Carbon dioxide and oxygen
(c). Helium and hydrogen
(d). Neon and argon

Answer
           A

17. Where is the subtropical high pressure belt located?
(a). Near the equator
(b). Near the poles
(c). Between the equator and the poles.
(d). Across the oceans

Answer
           C

18. How does atmospheric pressure change with temperature?
(a). Increases with temperature
(b). Decreases with temperature
(c). Increases with humidity
(d). Decreases with humidity

Answer
           B

19. Which circulation pattern influences El Nino and La Nina phenomena?
(a). Hadley cell
(b). Ferrel cell
(c). Polar cell
(d). Walker circulation

Answer
           D 

20. What is the average atmospheric pressure at sea level?
(a). 1 millibar
(b). 76 cm mercury
(c). 100 pascal
(d). 1000 kilopascals

Answer
           B

21. How do isobars represent pressure on weather maps?
(a). Through color gradients
(b). By connecting areas of similar temperature
(c). By connecting areas of equal pressure.
(d). By telling the direction of the wind

Answer
           C

22. What effect does the Coriolis effect have on atmospheric circulation?
(a). Temperature gradient
(b). Wind direction
(c). Humidity level
(d). Air density

Answer
           B

23. Which factor does not affect atmospheric pressure?
(a). Height
(b). Temperature
(c). Ocean currents
(d). Humidity

Answer
           C

24. What is the primary unit used to measure atmospheric pressure?
(a). Kilogram
(b). Pascal
(c). Degrees Celsius
(d). Bar

Answer
           B

25. What causes atmospheric pressure?
(a). Gravitational pull on air molecules
(b). Earth’s rotation
(c). Movement of clouds
(d). Volcanic activity

Answer
           A