World geography

271. The horizontal of soil profile is composed of

weathered parent material that is not affected by translocation and organic modification
material affected by translocation & organic modification
unweathered bedrock
None of the above

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soil profile is composed of" class="read-more button" href="https://exam.pscnotes.com/mcq/the-horizontal-of-soil-profile-is-composed-of/#more-43932">Detailed SolutionThe horizontal of soil profile is composed of

273. The most important force that provide resistance to particles towards entertainment is

frictional resistance
particle cohesive bonds
particle adhesive bonds
momentum

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class="read-more button" href="https://exam.pscnotes.com/mcq/the-most-important-force-that-provide-resistance-to-particles-towards-entertainment-is/#more-43832">Detailed SolutionThe most important force that provide resistance to particles towards entertainment is

274. The reaction between compounds and oxygen is called

oxidation
hydrolysis
carbonation
solution

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512"> Subscribe on YouTube href="https://exam.pscnotes.com/mcq/the-reaction-between-compounds-and-oxygen-is-called/#more-43717">Detailed SolutionThe reaction between compounds and oxygen is called

275. The ionosphere contains ionized air that protects the earth from

the ultraviolet rays of the sun
the infrared rays of the sun
the falling meteorites
None of the above

Detailed SolutionThe ionosphere contains ionized air that protects the earth from

276. The heavier silicates named as ‘Sima’ or silica + magnesium are most abundant in the

crust
core
mantle
ocean floors

Detailed SolutionThe

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heavier silicates named as ‘Sima’ or silica + magnesium are most abundant in the

277. The slow down slope movement of soil and sediment because of frost heaving and thawing is called

solifluction
gelifluction
frost creep
rockfall

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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 class="screen-reader-text">The slow down slope movement of soil and sediment because of frost heaving and thawing is called

278. The oldest rocks found in ocean basins are ____ than the oldest continental rocks.

older
younger
larger
smaller

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class="read-more button" href="https://exam.pscnotes.com/mcq/the-oldest-rocks-found-in-ocean-basins-are-____-than-the-oldest-continental-rocks/#more-43382">Detailed SolutionThe oldest rocks found in ocean basins are ____ than the oldest continental rocks.

279. The mountains that separate European and Arctic Russia are

the Pyranees
the Balkans
the Carpathians
the Urals

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button" href="https://exam.pscnotes.com/mcq/the-mountains-that-separate-european-and-arctic-russia-are/#more-43364">Detailed SolutionThe mountains that separate European and Arctic Russia are

280. The steady or initial phase of the magnetic storms is

preceded by storm sudden commencement
magnetic storm at middle and low altitudes
a sharp increase of the field
None of the above

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initial phase of the magnetic storms is" class="read-more button" href="https://exam.pscnotes.com/mcq/the-steady-or-initial-phase-of-the-magnetic-storms-is/#more-43249">Detailed SolutionThe steady or initial phase of the magnetic storms is
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