Final Questions

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If all the oceans evaporated, the average thickness of the resulting salt layer would be ______.

60 meters

Which has a greater competence? a. A small, steep mountain stream b. A broad, slow-flowing river

A small, steep mountain stream

An impermeable layer of rock or sediment is called a(n) _________ in hydrogeologic contexts.

Aquitard

The form and topography (depth profile) of the ocean floor is termed________.

Bathymetry

What is NOT true of coral reefs?

Coral reefs are generally restricted to water that is cold.

True or False: All flooding events occur so rapidly that there is no time to alert people in harm's way.

False

True or False: As a rule, groundwater flows from areas of lower hydraulic head to areas of high hydraulic head.

False

True or False: The majority of humans live away from coastlines

False

Ephemeral streams _________.

Have flowing water either episodically or during a portion of the year

The most prominent force inducing tides on earth is the_______.

Moon's gravitational pull

True or False: Arsenic can be naturally occurring in groundwater

True

True or False: The bed load of a streams moves by saltation

True

Which sediment load carries electrically charged ions?

dissolved load

If an ocean current flows toward shore, then near shore there should be________.

downwelling

The discharge of a river travelling through a humid region will typically________downstream; the discharge of a river travelling through an arid region will typically _______ downstream.

increase/ decrease

In a humid climate, the topography of the water table_________.

is a subdued replica of surface topography

Pumping vast quantities of water locally________.

lowers the local water table, forming a cone-shaped depression

Longshore currents flow

parallel to the shore

What is NOT true of recharge areas?

recharge areas are the same as discharge areas

The Coriolis effect causes fluids or objects moving in the air or water to appear to be deflected because of the________.

rotation of the Earth

Which type of coastline would most likely contain estuaries or fjords?

submergent coastlines

Why will the sandstone shown in the figure probably not be permeable?

the pore spaces are not interconnected


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