Which of the Following Increases the Risk of Mass Movement

question 4

Multiple Choice

Which of the following increases the risk of mass movement?

• A) adding a small amount of moisture to dry sediment
• B) waves breaking on a beach before reaching a vertical sea cliff
• C) saturating the sediment with water
• D) reducing the steepness of the slope

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Definitions:

Reservoir

1. A lake that is created by a human-constructed dam. 2. A subsurface volume of rock that has sufficient porosity and permeability to permit the accumulation of oil or natural gas under adequate trap conditions.

Delta

A landform at the mouth of a river where it splits into several streams or channels and deposits sediment, creating a fan-shaped area.

High Tide

The state of the tide when it is at its highest level, typically caused by the gravitational pull of the moon and the sun on the Earth's oceans.

Downcutting

A process by which streams or rivers erode their beds, cutting downwards into the ground and often leading to valley deepening.