question

When sea level rises, the ocean may invade a river valley, producing a nearshore body of water of mixed and variable salinity termed a(n)

answer

estuary

question

earths surface with water

answer

70%

question

not depostional feature

answer

sea stack

question

waves get energy from

answer

wind

question

horizontal distance between crests

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wave length

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path of water particle movemt at sea is

answer

circular

question

If you found ancient rocks in Antarctica that had formed in an organic reef, what could you suggest?

answer

that the climate has changed and that Antarctica has moved

question

Which of the following statements is NOT a good description of ocean waves?

answer

Water particles in waves move along at the same velocity as the wave.

question

Longshore drift moves water and sediment

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along the beach in a zig-zag path

question

Which of the following is the most likely trend in the evolution of coastal features?

answer

sea cave, sea arch, sea stack, sea cliff

question

An atoll normally

answer

evolves from a fringe or barrier reef

question

major force of tides is...

answer

the gravitational force of the moon

question

seawater consists how much salt?

answer

3.5%

question

As the velocity of flow decreases,

answer

flow tends to become more laminar the maximum flow velocity decreases suspended sediment starts to be deposited

question

The lowest elevation to which a stream can downcut is the

answer

base level

question

most gradaully

answer

creep

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The immediate cause of incidents of mass movement is

answer

graviation

question

The principal difference between a lahar and a mudflow is the

answer

former mass contains pyroclastic debris from a volcanic eruption

question

curved surface

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slump

question

Strictly speaking, which of the following types of mass movement is a landslide

answer

rock slide

question

Which of the following factors decreases the risk of mass movemen

answer

adding vegetation to the side of a hill

question

Which of the following increases the risk of mass movement?

answer

flooding the sediment with water beyond saturation

question

Which of the following processes removes carbon dioxide from the atmosphere

answer

photosynthesis

question

Which of the following processes may be responsible for short-term cooling, yet in the long term favor warm, greenhouse climate

answer

volcanism

question

The difference in average temperatures between the poles and the equator during most of the Mesozoic era was _____ that seen today

answer

less than

question

Which of the following is an important long-term (acting over spans of tens of millions of years) factor in global climate chang

answer

atmospheric concentration of carbon dioxide

question

All changes within the Earth system are unidirectional and cannot be reversed

answer

False

question

Which of the following processes releases carbon dioxide to the atmosphere

answer

volcanism

question

One explanation for the hole in the ozone layer is that is has been brought about by human emissions o

answer

chloro CFCs

question

An increase through time in the proportion of heavy oxygen (O-18) in a sequence of carbonate sediments implies

answer

Earth was becoming cooler over time

question

There is a correlation in Earth history between warm periods and

answer

relatively large amounts of carbon dioxide in the atmosphere

question

Uplifted areas are subjected to erosion at the surface; this provides an example of

answer

negative feedback

question

Which of the following processes releases carbon dioxide to the atmosphere

answer

volcanism

question

There is a correlation in Earth history between warm periods and

answer

relatively large amounts of carbon dioxide in the atmosphere

question

During most of the Mesozoic, the Earth wa

answer

warmer than it was now

question

Sediments deposited directly by glaciers as they melt are termed

answer

till

question

When sea level rises, causing the ocean to fill a glacially carved valley, a _____ result

answer

fjord

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Valleys carved by glaciers tend to be shaped like the letter _____, whereas valleys carved by water tend to shaped like the lette

answer

U,V

question

A lake that forms within a bowl-shaped depression formed by a mountain glacier is termed a(n

answer

tarn

question

During glacial epoch, global sea level is

answer

lower because water is stored on the continents

question

Ice is a substance with a high albedo, which means it

answer

reflects most of the light that falls upon it

question

The current interglacial interval began a little more than _____ years ago

answer

10,000

question

An important long-term factor determining whether glacial ice will form on the continents has likely been the proportion of which gas in the atmosphere

answer

carbon dioxide

question

Lake Bonneville was the predecessor o

answer

Salt Lake

question

Sediments deposited directly by glaciers as they melt are characterized by

answer

very poor sorting

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Large continental glaciers are found today

answer

Greenland and Antarctica

question

Cirques and horns are features associated with

answer

mountain glaciation

question

The first scientist to theorize the past presence of glaciers in Europe was

answer

Louis Agaissiz

question

At the present, glaciers cover about _____ of the surface of the continents

answer

10%

question

In general, the dominant erosional landforms in desert regions are developed by

answer

running water

question

Ventifacts are a product of

answer

abrasion

question

Wind transports material by

answer

rolling saltation sliding suspension

question

The type of dune formed by winds blowing from at least three directions is a

answer

star

question

To qualify as a desert, a region must be

answer

arid, with less than 25 cm annual precipitation and very low relative humidity

question

As compared to humid climates, rates of chemical weathering in deserts are

answer

slower

question

Saltation of sand involves

answer

grains hopping into the air, traveling for a short distance, and returning to the ground

question

Which statement does NOT apply? Desertification occur

answer

only in small areas at most affecting in Africa

question

Which of the following is eolian in origin

answer

loess

question

A lag deposit, or desert pavement, is a concentration of

answer

gravel-size particles left behind as wind selectively moves sand and dust from the surfa

question

The migration of sand dunes results from

answer

erosion of sand on the windward side and deposition on the slip face.

question

Globaly most deserts are found?

answer

above 66 degrees north and south latitude (near the poles). near 30 degrees north and 30 degrees south latitude (subtropics).

question

Pumping vast quantities of water locally

answer

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

question

Water flowing from hot springs

answer

contains more dissolved minerals than does water flowing from cool springs

question

The zone below the water table is the zone of

answer

saturation

question

Groundwater erodes by

answer

solution

question

Which of the following statements is NOT a good description of ocean wave

answer

Water particles in waves move along at the same velocity as the wave

question

Longshore drift moves water and sediment

answer

along beach in zig zag path

question

Which of the following is the most likely trend in the evolution of coastal features

answer

sea cave, sea arch, sea stack, sea cliff

question

An atoll normall

answer

evolves from a fringe or barrier reef

question

The major force in the generation of tides is

answer

the gravitational attraction of the Moo

question

What percentage of seawater, on average, consists of dissolved salt ions

answer

3.5%

question

If you found ancient rocks in Antarctica that had formed in an organic reef, what could you suggest?

answer

that the climate has changed and that Antarctica has moved

question

The path of movement of a water particle in a wave at sea is

answer

circular

question

The horizontal distance between two successive waves' crests is called

answer

wave lengthq

question

Ordinary ocean waves derive their energy from

answer

winds

question

hich of the following is NOT a depositional feature

answer

sea stack

question

Approximately what percentage of the Earth's surface is covered with water?

answer

70%

question

When sea level rises, the ocean may invade a river valley, producing a nearshore body of water of mixed and variable salinity termed a(n)

answer

estauary

question

water cycle

answer

cycling of water between oceans, land, atmosphere and mantle

question

watershed

answer

area where rain is collected to form the river

question

tributaries

answer

small river or stream that flows in to a larger river or stream; a branch of the river

question

distributaries

answer

A river channel branching out from the main river and not rejoining it.

question

dendritic

answer

looks like a bunch of branches

question

radial

answer

looks like a circle

question

rectangular

answer

looks like boxes

question

trellis

answer

horizontel lines

question

stream flow

answer

refers to the flow of water within a channal- with DEFINABLE channel banks, wich is part of a stream channel network

question

discharge

answer

the flow of water past a given point in the river. varies with time and weather

question

gradient

answer

the property possessed by a line or surface that departs from the horizontal

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