World geography

51. The Plio-Pleistocene boundary lies about ____ years ago, at the beginning of the interval of warming after the last Pleistocene glaciations.

1,00,000
1,000
10,000
100

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the last Pleistocene glaciations." class="read-more button" href="https://exam.pscnotes.com/mcq/the-plio-pleistocene-boundary-lies-about-____-years-ago-at-the-beginning-of-the-interval-of-warming-after-the-last-pleistocene-glaciations/#more-57052">Detailed SolutionThe Plio-Pleistocene boundary lies about ____ years ago, at the beginning of the interval of warming after the last Pleistocene glaciations.

52. The underlying cause of bio diversity loss is

poverty and unsustainable development projects
macroeconomic policies
international trade factors
All of the above

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loss is" class="read-more button" href="https://exam.pscnotes.com/mcq/the-underlying-cause-of-bio-diversity-loss-is/#more-56933">Detailed SolutionThe underlying cause of bio diversity loss is

53. The radiation belts are zones in space around the

Earth
Jupiter and Saturn
Mercury
Earth, Jupiter and Saturn

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button" href="https://exam.pscnotes.com/mcq/the-radiation-belts-are-zones-in-space-around-the/#more-56928">Detailed SolutionThe radiation belts are zones in space around the

54. The troughs of the waves are where the jet stream of waves is closest to the

poles
equator
Prime meridian
None of the above

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waves is closest to the" class="read-more button" href="https://exam.pscnotes.com/mcq/the-troughs-of-the-waves-are-where-the-jet-stream-of-waves-is-closest-to-the/#more-56901">Detailed SolutionThe troughs of the waves are where the jet stream of waves is closest to the

55. The temperature needed to keep the earth’s surface and the atmosphere in thermal equilibrium is called

the surface temperature
equilibrium temperature
the mean global surface temperature
global temperature

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in thermal equilibrium is called" class="read-more button" href="https://exam.pscnotes.com/mcq/the-temperature-needed-to-keep-the-earths-surface-and-the-atmosphere-in-thermal-equilibrium-is-called/#more-56823">Detailed SolutionThe temperature needed to keep the earth’s surface and the atmosphere in thermal equilibrium is called

56. The metamorphism which involves the chemical replacement of elements in rock minerals when gases and liquids permute into bedrock is called

metasomatic metamorphism
dynamic metamorphism
thermal metamorphism
contact metamorphism

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rock minerals when gases and liquids permute into bedrock is called" class="read-more button" href="https://exam.pscnotes.com/mcq/the-metamorphism-which-involves-the-chemical-replacement-of-elements-in-rock-minerals-when-gases-and-liquids-permute-into-bedrock-is-called/#more-56811">Detailed SolutionThe metamorphism which involves the chemical replacement of elements in rock minerals when gases and liquids permute into bedrock is called

57. India’s major contacts with out-side world for the last two millennia have been by sea there-by earning the title for India:

The Mistress of the Eastern Seas
The Mistress of the Western Seas
The Mistress of the Southern Seas

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India:" class="read-more button" href="https://exam.pscnotes.com/mcq/indias-major-contacts-with-out-side-world-for-the-last-two-millennia-have-been-by-sea-there-by-earning-the-title-for-india/#more-56801">Detailed SolutionIndia’s major contacts with out-side world for the last two millennia have been by sea there-by earning the title for India:

58. The mean basin area of successive ordered streams formed a linear relationship when graphed. This statement is given by

morph metric analysis
law of drainage composition
law of basin areas
None of the above

Detailed SolutionThe mean basin area

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of successive ordered streams formed a linear relationship when graphed. This statement is given by

59. The south temperature zone is a region lying between

the Tropic of Capricorn and the Antarctic circle
the Antarctic circle and the South pole
the Tropic of Capricorn and the equator

Detailed SolutionThe south temperature zone is a region lying between

60. The longest epoch of the tertiary period is

Palaeocene
Eocene
Oligocene
Miocene

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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 href="https://exam.pscnotes.com/mcq/the-longest-epoch-of-the-tertiary-period-is/#more-56734">Detailed SolutionThe longest epoch of the tertiary period is
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