Mountain Building Quiz

2.

Which of the following can form as a result of tension by tectonic plate movement?

A syncline
An anticline
A folded mountain
A fault block mountain

Correct Answer

A. A fault block mountain

Explanation

A fault block mountain can form as a result of tension by tectonic plate movement. When tectonic plates move apart, tensional forces create fractures or faults in the Earth's crust. In the case of a fault block mountain, one side of the fault is uplifted while the other side remains relatively unchanged. This uplifted block forms a mountain range, with steep slopes on one side and a more gentle slope on the other. This type of mountain is typically characterized by a series of parallel ridges and valleys, and examples include the Sierra Nevada range in California and the Tetons in Wyoming.

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3.

The figure below shows three kinds of faults: normal faults, reverse faults, and strike-slip faults. What happens when stress causes a strike-slip fault?

The footwall moves up.
The hanging wall move up.
The hanging wall drops down.
The walls slide past each other.

Correct Answer

A. The walls slide past each other.

Explanation

When stress causes a strike-slip fault, the walls slide past each other. In a strike-slip fault, the movement of the rocks is horizontal, with one side of the fault moving to the left and the other side moving to the right. This type of fault occurs when the stress is mainly horizontal and the rocks experience shear forces. As a result, the rocks on either side of the fault slide past each other, causing the walls to move horizontally rather than vertically.

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4.

How are folded mountains formed?

By tension
By shear stress
By compression
By volcanic activity

Correct Answer

A. By compression

Explanation

Folded mountains are formed by compression. When two tectonic plates collide, immense pressure is exerted on the rocks in the Earth's crust. This pressure causes the rocks to fold and buckle, forming folded mountains. The compression forces the rocks to bend and fold, creating large-scale structures like ridges and valleys. Over time, the continued movement of the tectonic plates and the forces of erosion shape these folded mountains into their characteristic shapes.

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5.

How are volcanic mountains formed?

By tension
By eruption
By shear stress
By compression

Correct Answer

A. By eruption

Explanation

Volcanic mountains are formed by eruption. When molten rock, gas, and other materials escape through the Earth's crust during a volcanic eruption, they form a volcanic mountain. The eruption occurs when pressure builds up in the magma chamber beneath the Earth's surface, causing the magma to rise and eventually erupt onto the surface. This process leads to the accumulation of layers of volcanic material over time, gradually forming a mountain.

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2

Mountain Building Quiz

Which of these answers best describes compression caused by tectonic plate movement?

Which of the following can form as a result of tension by tectonic plate movement?

The figure below shows three kinds of faults: normal faults, reverse faults, and strike-slip faults. What happens when stress causes a strike-slip fault?

How are folded mountains formed?

How are volcanic mountains formed?