45. The periodic rise and fall of the sea level on the earth, gives rise to tides. This is related to

the position of the moon with reference to the earth and the gravitational pull exerted mainly by the moon and partly by the sun
infrared rays from the sun
ultraviolet rays from the sun
None of the above

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is related to" class="read-more button" href="https://exam.pscnotes.com/mcq/the-periodic-rise-and-fall-of-the-sea-level-on-the-earth-gives-rise-to-tides-this-is-related-to/#more-51897">Detailed SolutionThe periodic rise and fall of the sea level on the earth, gives rise to tides. This is related to

46. The umbra is

the inner portion of the moon's shadow
formed by tangents to the sun and moon
both (a) and (b)

Detailed SolutionThe umbra is

47. The mean distance of the earth from the sun is approximately

149,502,000 km
150,503,000 km
148,000,000 km
150,000,000 km

Detailed Solution

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class="screen-reader-text">The mean distance of the earth from the sun is approximately

48. The time at a place is determined by

the parallels of longitude
the parallels of latitude
distance from equator
distance from prime meridian

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64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube a place is determined by" class="read-more button" href="https://exam.pscnotes.com/mcq/the-time-at-a-place-is-determined-by/#more-51581">Detailed SolutionThe time at a place is determined by

49. The latitude ‘AA’ on the map represents the

Tropic of Cancer
Tropic of Capricorn
Equator
None of the above

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the" class="read-more button" href="https://exam.pscnotes.com/mcq/the-latitude-aa-on-the-map-represents-the/#more-51409">Detailed SolutionThe latitude ‘AA’ on the map represents the

50. The most notable example of a tectonic valley is that of the

Doon valley
Kashmir valley
plains of Aksai Chin
None of the above

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is that of the" class="read-more button" href="https://exam.pscnotes.com/mcq/the-most-notable-example-of-a-tectonic-valley-is-that-of-the/#more-51398">Detailed SolutionThe most notable example of a tectonic valley is that of the

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