World geography

21. The northern hemisphere and the southern hemisphere are separated by

the International Date line
the plane of the equator
the plane of Tropic of Cancer
the plane of Tropic of Capricorn

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and the southern hemisphere are separated by" class="read-more button" href="https://exam.pscnotes.com/mcq/the-northern-hemisphere-and-the-southern-hemisphere-are-separated-by/#more-58793">Detailed SolutionThe northern hemisphere and the southern hemisphere are separated by

22. The propagation of radio signals is greatly influence by

troposphere
ionosphere
exosphere
thermosphere

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class="screen-reader-text">The propagation of radio signals is greatly influence by

23. The major graphite producing country is

Russia
Sri Lanka
India
Zaire

Detailed SolutionThe

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major graphite producing country is

24. The languages used in China is

Chinese, English
Chinese, Arabic
Chinese, French
Chinese, Korean

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25. The percentage of sun’s radiation reflected back into space is about

36 percent
47 percent
17 percent
None of the above

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about" class="read-more button" href="https://exam.pscnotes.com/mcq/the-percentage-of-suns-radiation-reflected-back-into-space-is-about/#more-58409">Detailed SolutionThe percentage of sun’s radiation reflected back into space is about

26. The Mistral is

very cold wind, which blows down from the plateau of central France
wind that blows for 100 days a year and may cause extensive frost damage to plants
All of the above

Detailed SolutionThe Mistral is

27. The limit beyond which the stars suffer internal collapse is called the

Raman Effect
Chandrasekhar limit
Aurora Borealis
Quasan Zone

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class="read-more button" href="https://exam.pscnotes.com/mcq/the-limit-beyond-which-the-stars-suffer-internal-collapse-is-called-the/#more-58344">Detailed SolutionThe limit beyond which the stars suffer internal collapse is called the

28. The Penumbra is

the outer portion of the moon's shadow
formed by the tangent that intersects between the sun and the moon
None of the above

Detailed SolutionThe Penumbra is

29. The subatomic particles arriving from outer space having high energy are called

protons
electrons
cosmic rays
None of the above

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href="https://www.youtube.com/channel/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1" target="_blank" class="youtube-subscribe-button"> Subscribe on YouTube href="https://exam.pscnotes.com/mcq/the-subatomic-particles-arriving-from-outer-space-having-high-energy-are-called/#more-58241">Detailed SolutionThe subatomic particles arriving from outer space having high energy are called

30. The main tributaries of Indus river system are

the Jhelum, the Chenab , the Ravi
the Beas, the Sutlej
both (a) and (b)
None of the above

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