46)The thickness of the troposphere increases in
summer winter
spring never changes
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47)The gas in the atmosphere that absorbs ultraviolet rays is
methane nitrogen
ozone helium
Answer :

48)The fall in temperature with increasing elevation is called
thermal anomaly thermal reduction
thermal fall lapse rate
Answer :

49)Where is doldrums belt located?
near the equator near the polar areas
on the tropic of cancer on the tropic of capricon
Answer :

50)What is the name given to the wind blowing from sub tropical high pressure region to the equator?
westerlies trades
northerlies doldrums
Answer :

51)\'Horse latitudes\' is the name of the
0 degree - 5 degree north and south latitudes polar circles
30 degree - 40 degree north and south latitudes 40 degree - 60 degree north and south latitudes
Answer :

52)The reason for the fact that stratosphere is ideal for flying jet air craft is
that this layer is rich in ozone which reduces fuel consumption that the temperature is constant and ideal for aircraft engine efficiency
that this layer is out of the firing range of anti aircraft guns that the absence of clouds and other weather phenonema
Answer :

53)Incoming solar radiation is known as
radiation refraction
insolation reflection
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54)The velocity of wind is governed by
Farrel\'s law pressure gradient
rotation of the earth temperature
Answer :

55)Why does the sky look blue
because the blue light is scattered by dust particle because blue is the natural colour of the sky
because of the presence of water vapour in the sky because blue colour has longest wave length
Answer :

56)The cause of change of seasons on the earth is
rotation of the earth revolution and inclination of the earth
rotation of the sun rotation of the moon
Answer :

57)Arrange the planets correctly in descending order in terms of number of their satellites (1) Uranus (2) Jupiter (3) Saturn (4) Mars
2, 3, 1, 4 4, 2, 3, 1
2, 3, 4, 1 3, 2, 1, 4
Answer :

58)Identify the sedimentary rocks (1) Basalt (2) Limestone (3) Shale (4) Granite (5) Quartzite
1 and 2 2 and 3
2 and 5 3 and 4
Answer :

59)The instrument used for measuring humidity
barometer thermometer
hygrometer hydrometer
Answer :

60)How much pressure exerted by the atmosphere at the sea level?
one kg per square cm one pound per square cm
five kg per square cm two kg per square cm
Answer :

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