GEOLOGY

EARTH SCIENCE

EARTHQUAKES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does folding affect Earth’s surface?
A
Folding causes the crust to buckle, and over time, to rise up and form mountains.
B
Folding causes the crust to sink.
C
Folding causes the crust to bend in half.
D
Folding has no effect on Earth’s surface.
Explanation: 

Detailed explanation-1: -Fold mountains are created where two or more of Earth’s tectonic plates are pushed together. At these colliding, compressing boundaries, rocks and debris are warped and folded into rocky outcrops, hills, mountains, and entire mountain ranges. Fold mountains are created through a process called orogeny.

Detailed explanation-2: -When the Earth’s crust is pushed together via compression forces, it can experience geological processes called folding and faulting. Folding occurs when the Earth’s crust bends away from a flat surface. A bend upward results in an anticline and a bend downward results in a syncline.

Detailed explanation-3: -folding and faulting creates a abnormal tension inside the earth’s crust which leads to unequal levelling of the mantle and hence it forms pressure on the surface of earth. If such tension is exerted under the land of any reservoir, it leads to collapsing of it.

Detailed explanation-4: -Folds, faults, and other geologic structures accommodate large forces such as the stress of tectonic plates jostling against each other, and smaller forces such as the stress of gravity pulling on a steep mountainside.

Detailed explanation-5: -When 2 plates start to move away from each other, cracks start to form in the crust (faults). These weaken the crust. When movement continues there becomes more and more faults formed. WHen these are parallel the land between can do one of two things; Be uplifted or sink down.

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