Earth Science B Quiz #4

Question 1

What is a tear-shaped pile of glacial sediment?

Answer 1

Drumlin.

Question 2

What is an aquifer with impermeable layers above and below?

Answer 2

Confined.

Question 3

Will melting sea ice raise sea levels?

Answer 3

No.

Question 4

Glacial ____ is unsorted sediment associated with a glacier.

Answer 4

Till.

Question 5

Area of a glacier where snowing is greater than melting?

Answer 5

Accumulation.

Question 6

We care about the porosity of rocks because it lets us know how much ____ can be held?

Answer 6

Water.

Question 7

Glaciers are found at high latitudes and ___?

Answer 7

Altitudes.

Question 8

The line of __________ is the boundary between the zones of accumulation and ablation?

Answer 8

Equilibrium.

Question 9

The type of aquifer which is most likely to be contaminated?

Answer 9

Unconfined.

Question 10

The aquifers under Ottawa County are getting lower because it is being pumped faster than they can _____?

Answer 10

Recharge.

Question 11

Area of a glacier where melting is greater than snowing?

Answer 11

Ablation.

Question 12

Glacial sediment that is left at the end or sides of a glacier?

Answer 12

Moraine.

Question 13

A unit of permeable and porous rock that contains water?

Answer 13

Aquifer.

Question 14

Porosity is the amount of pore _____ within rock.

Answer 14

Space.

Question 15

Permeability is how well water will ____ through rocks.

Answer 15

Flow.

Question 16

Glaciers are always _____.

Answer 16

Moving.

Question 17

Glaciers flow downhill because of ______.

Answer 17

Gravity.

Question 18

What is porosity?

Answer 18

The amount of pore space in sediment.

Question 19

What is permeability?

Answer 19

The ability of materials for water to pass through.

Question 20

What are some factors that affect surface runoff?

Answer 20

Type of soil, condition of the soil, slope, plant cover (infiltration, interception).

Question 21

What factors affect porosity?

Answer 21

Shape, sorting, packing.

Question 22

What factors affect permeability?

Answer 22

grain size, sorting, connectedness.

Question 23

Rounded rocks and sediment have a (low or high) porosity.

Answer 23

High.

Question 24

Unsorted rocks and sediment have a (low or high) porosity.

Answer 24

Low.

Question 25

Loosely packed rocks and sediment have a (low or high) porosity.

Answer 25

High.

Question 26

Large gravel has a (low or high) permeability.

Answer 26

High.

Question 27

Nonporous materials can be permeable. (true or false)

Answer 27

True - Water may pass through the cracks that develop over time.

Question 28

Pumice is highly porous but impermeable. (true or false)

Answer 28

True - many pores but not connected.

Question 29

Sand has a higher porosity than clay. (true or false)

Answer 29

False.

Question 30

What are some common causes of groundwater/surface water contamination?

Answer 30

Industrial waste, sewage/wastewater, fossil fuels/gasoline, fertilizers/pesticides, road salts, bacteria/viruses.

Question 31

What is a continental glacier?

Answer 31

This type of glacier covers large continent-sized areas with huge ice sheets.

Question 32

What is a valley glacier?

Answer 32

Forms high in the mountains move within valley walls, and are relatively small.

Question 33

What is a glacier?

Answer 33

A large mass of moving ice and snow.

Question 34

What happens when a glacier advances?

Answer 34

A glacier grows (advances) when it accumulates more ice than it loses from melting or calving.

Question 35

What happens when a glacier retreats?

Answer 35

It moves backward and the glacier shrinks. The winter snowfall is less than the summer snowmelt.

Question 36

What is sea ice?

Answer 36

Frozen sea water that floats on the ocean's surface. It forms in the winter and retreats in the summer. Keeps the polar regions cool and regulates temperatures globally.

Question 37

What are 2 types of aquifers?

Answer 37

confined and unconfined.

Question 38

What is a confined aquifer?

Answer 38

Water sealed between 2 impermeable layers.

Question 39

What is an unconfined aquifer?

Answer 39

An aquifer open to earth's surface(permeable). The bottom of the aquifer is the impermeable.

Question 40

What types of sediment make good aquifers?

Answer 40

Sandstone, fractured rock, gravel, etc.

Question 41

What types of sediment make poor aquifers?

Answer 41

Solid rock such as granite, schist, etc.

Question 42

What is the Line of Equilibrium?

Answer 42

The space/line between the zone of accumulation and the zone of ablation.

Question 43

Where are most of the glaciers in the world found?

Answer 43

high altitudes, high latitudes.