Groundwater

Question 1

GROUND WATER ZONES

Answer 1

• Unsaturated zone - water is present
• water table - top of zone of saturation
• zone of saturation - ground water and water pressure great to allow wells

Question 2

Active Margin features

Answer 2

tectonic activity
earthquake and volcanoes
narrow shelf
steep slopes

Question 3

passive margin features

Answer 3

no tectonic activity
wide continental shelf
gradual slope
smooth transition to abyssal plain

Question 4

ROCK FLOUR

Answer 4

ACT AS A FINE GRIT THA TPOLISHES THE SURFACE OF BEDROCK SMOOTH

Question 5

GLACIAL STRIATIONS

Answer 5

LARGE FRAGMENT SCRAPE OVER SURFACE CREATING ELONGATE GROOVES

Question 6

ACCUMULATION > ablation

Answer 6

advance (positive feedback)

Question 7

accumulation < ablation

Answer 7

retreat (negative feedback)

Question 8

cirque

Answer 8

Bowl-shaped feature – represents where the head of the glacier eroded the mountain by plucking rock away from it

Question 9

hanging valley

Answer 9

Tributary valley – with a waterfall plunging into the main valley

Question 10

A small glacier that forms within a cirque basin, generally high on theside of a mountain.

Answer 10

cirque

Question 11

A crack or series of cracks that open in the surface of a moving glacier inresponse to differential stresses caused by glacier flow. They range in shape from linearto arcuate, in length from feet to miles. Their orientation may be in any direction withrespect to the glacier flow. The deepest crevasses may exceed 100 feet

Answer 11

crevasse

Question 12

An elongated ridge of glacial sediment sculpted by ice moving over the bed of aglacier. Generally, the down-glacier end is oval or rounded and the up-glacier end tapers.The shape is often compared to an inverted, blunt-ended canoe. Although not commonin Alaska, drumlins cover parts of the Eastern and Midwestern United States

Answer 12

Drumlin

Question 13

A rock of unspecified shape and size, transported a significant distance from itsorigin by a glacier or iceberg and deposited by melting of the ice. Erratics range frompebble-size to larger than a house and usually are of a different composition that thebedrock or sediment on which they are deposited

Answer 13

erratic

Question 14

A meandering, water-deposited, generally steep-sided sediment ridge that formswithin a subglacial or englacial stream channel. Its floor can be bedrock, sediment, orice. Subsequent melting of the glacier exposes the deposit. Generally composed ofstratified sand and gravel, eskers can range from feet to miles in length and may exceed100 feet in height

Answer 14

Esker

Question 15

Reducing emissions from electric power

Answer 15

Substituting less carbon-intensive fuels
Renewable energy
Increased end-use energy efficiency
Nuclear energy
Carbon capture and requestion

Question 16

RENEWABLE REOURCES

Answer 16

HYDROPOWER
SOLAR
BIOMASS
GEOTHERMAL
WIND