Chapter 16 Groundwater

Question 1

Chlorine is added to drinking water because…

Answer 1

it kills diseases that cause bacteria

Question 2

Where is the water table located?

Answer 2

top of the saturation zone

Question 3

Where does the water table go when there is a shortage in groundwater

Answer 3

it lowers

Question 4

What is the recharge zone?

Answer 4

The area where water comes from the surface which can move through permeable rocks to reach the aquifer

Question 5

What is chemical weathering?

Answer 5

The process when carbonic acid breaks down minerals

Question 6

What is the name for the amount of uniformity in the size of rocks and sediments?

Answer 6

Sorting

Question 7

Hard water contains high levels of what two things?

Answer 7

calcium and magnesium

Question 8

What is a septic system?

Answer 8

What many homes that are not connected to a public sanitary sewer use to dispose sewage

Question 9

Zone of Saturation

Answer 9

The layer of an aquifer in which the pore space is completing filled with water

Question 10

Where is groundwater found?

Answer 10

the aquifer

Question 11

Sewage:

Answer 11

wastewater and the different kinds of waste in it like toilet paper and soap

Question 12

Where does a well have to drilled to get water?

Answer 12

Zone of saturation

Question 13

Define spring.

Answer 13

Natural flow of groundwater to the Earth’s surface

Question 14

What is an artesian well?

Answer 14

a well that is pressurized

Question 15

Define permeable.

Answer 15

Materials that allow water to easily pass through them.

Question 16

Define zone of aeration.

Answer 16

The zone that is between the water table and the Earths surface

Question 17

Define aeration.

Answer 17

The process of pumping air through water during the treatment process to remove gases which cause an unpleasant smell or taste

Question 18

What is the name of the first step of treating drinking water from a river or lake to be used a drinking water?

Answer 18

filtration

Question 19

What allows water to move through pipes of the distribution system?

Answer 19

Water pressure

Question 20

Define Sinkhole.

Answer 20

When the underlying rock is dissolved away making a cavity on the top layer and allows the ground to collapse.

Question 21

When dripping calcite forms a cone shaped deposit on the ceiling of a cavern it is called _________.

Answer 21

stalactite

Question 22

Define geyser

Answer 22

The result of pressure build up and eruption through small vents.

Question 23

Define sludge.

Answer 23

The buildup of fine sediments in the bottom of a settling tank or septic tank that must be removed.

Question 24

Define cone of depression.

Answer 24

The area around a well which is lower than the rest of the water table.

Question 25

Define stalagmite

Answer 25

When dripping calcite builds up from the bottom of a cavern floor to the top of it.

Question 26

What is the difference between stalagmite and stalactite?

Answer 26

stalactite is when dripping calcite is coming from the ceiling

Question 27

Define pores.

Answer 27

The space between rocks or soil particles that could be filled or not filled with water.

Question 28

The process of _____________ is when particles in the water clump together into flocs.

Answer 28

coagulation

Question 29

What is located underground and stores sewage? It also contains bacteria used to treat wastewater.

Answer 29

Septic Tank

Question 30

Define septic field.

Answer 30

located on a homeowners lawn and its job is to clean the waste water form the house by tricking out of pipes through the soil until it reaches groundwater