Hydrology Flashcards

(45 cards)

0
Q

Define nonpoint-source pollution

A

Examples include: Land runoff, rainfall, deposition, and drainage. It’s the non-direct form of pollution and is carried through the water cycle

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1
Q

Where is most of earths fresh water located?

A

Solidified at the north and south poles

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2
Q

Define stream load

A

All of the sediment carried by a river

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3
Q

Define aquifer

A

Any body of rock through which water can flow and can store enough water for domestic and industrial use

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4
Q

Define porosity

A

The total volume of the open spaces or pores in a rock

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5
Q

Define well sorted

A

When all the particles in a sediment are about the same size

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6
Q

Define permeability

A

The ease with which water can pass through a rock or sediment

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7
Q

Define zone of saturation

A

The underground layer of rock where all of the open spaces are filled with water

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8
Q

Define water table

A

The upper surface of the zone of saturation

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9
Q

Define spring

A

A natural flow of groundwater that has reached the surface

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10
Q

Define chemical weathering

A

Rock is broken down due to chemical reaction

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11
Q

Explain a young river

A

Has the fastest velocity, v-shaped, narrow or straight, has rapids, and has lots of erosion.

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12
Q

Explain a mature river

A

Fast to medium velocity, u-shaped, less erosion then a young river, smooth riverbed, slower than young.

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13
Q

Explain an old river

A

Slowest velocity, u-shaped with meanders and oxbow lakes, little erosion.

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14
Q

Define cave

A

Large underground cave due to carbonization of limestone

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15
Q

Define sinkhole

A

When a cavern collapses because te water table has dropped

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16
Q

Define geyser

A

Underground pressure and the water erupts

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17
Q

Where is fresh water found

A

Lakes, rivers, glaciers, and groundwater.

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18
Q

Create a list for the uses of water

A

Lawns, pools, hygiene, cooling tanks, energy or power, crop irrigation, living stock production

19
Q

List in order the layers of soil

A

Humus, topsoil, subsoil, and bedrock

20
Q

What are the inputs of the water budget

A

Precipitation and absorption

21
Q

What are the outputs of the water budget

A

Runoffs, humans, plants, and animals, evaporation, and movement.

22
Q

Define recharge zones

A

Areas where water moves below surface to aquifer.

23
Q

What are the five types of chemical weathering

A

Carbonation, oxidation, plants acids (from roots), hydrolysis of minerals, and acidic rain ( a lot on east coast)

24
Name the three types of physical weathering
Exfoliation, ice wedging, an abrasion
25
Define leaching
Water carries the dissolved minerals to lower levels of rock
26
How is acid rain created
Waste gases are released into air and combine with water in the atmosphere
27
Define erosion
Products of weathering are transported by gravity, wind, glaciers or water
28
What are the four practices that farmers can do to prevent erosion
Terracing, contour plowing, strip-cropping, crop rotation
29
What are the four things that can trigger landslides
Heavy rainfall, spring thaws, volcanic eruptions, and earthquakes.
30
Define travertine
A form of water deposited calcite
31
Define karst topography
Regions where the effects of the chemical weathering die to groin water are clearly visible at the surface
32
Define groundwater
Water stored beneath earths surface in sediment and rock formations
33
Explain an ordinary well
It source of water is from the ground, it's found in highly permeable rock below the water table and there's pumping involved
34
Explain an artesian well
Flows freely with no pumping
35
Define rejuvenated river
A river whose gradient or slope has become steeper
36
Define natural levees
Raised banks
37
Define tributaries
Feeder streams that flow into a main stream In a river system
38
Define watershed
Drainage basin that water runs off into
39
Define head-ward erosion
The process of lengthening and branching of a stream
40
Define topography
A region on earths surface in which landforms have a common origin.
41
Define relief
Change in elevation
42
Explain mountains
Greatest reliefs, high peaks, steep valleys, usually metamorphic, not horizontal layers
43
Explain plateaus
Medium relief, stream valleys, flat bedrock stricter, usually sedimentary
44
Explain plains
Little relief, low elevation, flat