51). Atmospheric pressure exerted on earth is due to:
A). Rotation of earth |
B). Revolution of earth |
C). Uneven heating of earth |
D). Gravitational pull of the earth |
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52). The Sea breeze blows during:
A). day from land to sea |
B). day from sea to land |
C). night from land to sea |
D). night from sea to land |
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53). The instrument used for finding out wind-direction is:
A). anemometer |
B). wind vane |
C). wind gauze |
D). hygrometer |
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54). 'Beaufort Scale' is used to measure:
A). air pressure |
B). wind direction |
C). wind velocity |
D). humidity |
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55). Lapse rate is related to the decrease of:
A). wind velocity with an ascent of 300 feet |
B). humidity with an ascent of 450 feet |
C). temperature at \( \Large 1 ^{\circ} \) F for an ascent of 330 feet |
D). pressure with an ascent of 500 feet |
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56). The humidity of the air depends upon:
A). Temperature |
B). location |
C). weather |
D). All of the above |
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57). Which of the following constituents of the atmosphere are important from the climatic point of view? 1. Nitrogen 2. Oxygen 3. Carbon dioxide
A). 1 and 2 |
B). 2 and 3 |
C). 1, 2 and 3 |
D). only 3 |
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58). The Trade winds are caused by:
A). rotation of the earth |
B). revolution of the earth |
C). inflowing movement of air along the earth's surface towards the equator |
D). none of these |
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59). Temperature generally decreases towards the poles because:
A). Air movement is generally towards the equator |
B). Cold polar air masses prevent surface heating of the land |
C). Cold surfaces do not absorb solar energy as readily as warm surfaces |
D). Progressively lesser solar energy per unit area falls on the earth's surface as we move to polar regions |
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60). What is the correct sequence of the following zonal pressure belts? 1. Subpolar low 2. Equatorial low 3. Polar high 4. Subtropical high Select the correct answer using the codes given below:
A). 2, 3, 1, 4 |
B). 1, 4, 2, 3 |
C). 2, 4, 1, 3 |
D). 1, 3, 2, 4 |
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