Rivers and Groundwater Systems discussion

Anonymous

Question Description

QUESTION 1

  1. In what part of the water cycle does water have the SHORTEST residence time?

3 points

QUESTION 2

  1. Which of the following can serve as a drainage divide between adjacent watersheds?

3 points

QUESTION 3

  1. Watersheds are like a system with interacting components that can perform work. Which of the following is an example of work done by a watershed?

3 points

QUESTION 4

  1. Compare and contrast surface and subsurface water in terms of natural inputs, outputs, and storage.
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5 points

QUESTION 5

  1. Define subterranean river and ephemeral river. Describe the types of areas where each of these river types are found.
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5 points

QUESTION 6

  1. The potential energy of water behind a dam can be used to

3 points

QUESTION 7

  1. Headward erosion by a stream

3 points

QUESTION 8

  1. When sand and gravel are whirled around by eddies in a river they cause

3 points

QUESTION 9

  1. Headward erosion takes place opposite the direction of a river's flow.

2 points

QUESTION 10

  1. Floodplains are most often found for rivers that exist on

3 points

QUESTION 11

  1. When do alluvial fans develop in arid desert environments?

3 points

QUESTION 12

  1. Which of the following can cause a flash flood?

3 points

QUESTION 13

  1. Flash floods are a type of _____ flood.

3 points

QUESTION 14

  1. Which term best describes the topography of a floodplain?

3 points

QUESTION 15

  1. Besides drowning, how else can floods cause loss of human life?

3 points

QUESTION 16

  1. If a government flood risk map for your area does not fit on one page, it may be drawn up on several different pages. Each page is referred to as a

3 points

QUESTION 17

  1. Official U.S. government maps that show flood risks are usually printed on which of the following levels?

3 points

QUESTION 18

  1. If your home is damaged by a flood, try to avoid turning on any lights until you know that all gas and electrical lines are undisturbed.

2 points

QUESTION 19

  1. Why are floods especially common in the spring?

3 points

QUESTION 20

  1. The percentage of total volume of voids in a rock is called

3 points

QUESTION 21

  1. How does solution activity make limestone rocks permeable for groundwater flow?

3 points

QUESTION 22

  1. Define the term aquifer and explain the difference between a confined and an unconfined aquifer.
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5 points

QUESTION 23

  1. Natural discharge of a groundwater system occurs when

3 points

QUESTION 24

  1. Which statement is true about groundwater flow?

3 points

QUESTION 25

  1. How are natural springs, hot springs, and geysers similar? How are they different?







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5 points

QUESTION 26

  1. More than one-half of America's drinking water comes from groundwater.

2 points

QUESTION 27

  1. Most groundwater in the U.S. is used for residential purposes, such as laundry and watering lawns.

2 points

QUESTION 28

  1. A chemical in groundwater that can cause genetic changes is called a

3 points

QUESTION 29

  1. A chemical in groundwater that causes cancer is called a

3 points

QUESTION 30

  1. Besides saltwater intrusion, describe two other problems commonly caused by over-pumping of groundwater.
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5 points

QUESTION 31

  1. Excessive withdrawal of groundwater for agricultural use rarely causes land subsidence, unlike excessive withdrawal for drinking water, which does cause subsidence.

2 points

QUESTION 32

  1. After an aquifer collapses due to over-pumping, it can slowly be restored by natural precipitation.

2 points

Tutor Answer

Kishnewt2017
School: University of Virginia

Attached.

QUESTION 1
1. In what part of the water cycle does water have the SHORTEST residence time?

ATMOSPHERE
GROUNDWATER
OCEANS
ICE SHEETS
3 points
QUESTION 2
1. Which of the following can serve as a drainage divide between adjacent watersheds?

RIDGE
HILL
MOUNTAIN
ALL OF THE ABOVE
3 points
QUESTION 3
1. Watersheds are like a system with interacting components that can perform work. Which
of the following is an example of work done by a watershed?

CARRY SEDIMENT
TRANSPORT WATER
TRANSPORT ENERGY
ALL OF THE ABOVE
3 points
QUESTION 4

1. Compare and contrast surface and subsurface water in terms of natural inputs, outputs,
and storage.

SURFACE WATER
Input: through precipitation. When precipitation falls, its a runoff when it doesn't seep
into the ground.
Output: rivers or streams
Storage: watersheds
SUBSURFACE WATER
Input: precipitation through recharging process.
Output: when atmospheric pressure above ground is lower than subsurface water
pressure it flows as rivers, streams and becomes a source of drinking water or
irrigation water in farming.
Storage: acquifers, rock layer that holds water.

QUESTION 5
1. Define subterranean river and ephemeral river. Describe the types of areas where each of
these river types are found.

A subterranean river is a river that runs wholly or partly beneath the ground surface. Found in
wetlands

Ephemeral River is a river that flows for very short periods following heavy rainfall or
snow...

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