SCIN 138 Week 6 Exam

SCIN 138 Week 6 Exam | Assignment Help | american-public-university-system

Week 6 Exam

Question 1 of 25

Ideally aquifers should have ________.

  A. low porosity and low permeability.

  B. low porosity and high permeability

  C. high porosity and high permeability.

  D. high porosity and low permeability.

Question 2 of 25

Limestone dissolves in slightly acidic water because ________.

  A. it contains calcite

  B. it contains salt

  C. it contains quartz

  D. It contains clay

Question 3 of 25

The water table is located ________.

  A. below the confining layer

  B. at the top of the saturated zone

  C. at the bottom of the saturated zone.

  D. is at the surface.

Question 4 of 25

Which of the following is a natural cause of groundwater pollution?

  A. E. coli bacteria

  B. Runoff

  C. Landfills

  D. Rocks

Question 5 of 25

Condensation is the process where ________.

  A. ice melts and gives off steam.

  B. Water turns from solid to liquid

  C. water vapor turns into a liquid.

  D. liquid water turns into vapor

Question 6 of 25

The bedload is commonly characterized by ________.

  A. very fine particles.

  B. silt particles

  C. saltation. .

  D. dissolved particles.

Question 7 of 25

Which of the following is NOT a consequence of overuse of groundwater?

  A. subsidence

  B. earth fissures

  C. flooding.

  D. saltwater intrusion

Question 8 of 25

Which type of stream load is characterized by saltation?

  A. sediment load

  B. suspended load

  C. bed load

  D. dissolved load

Question 9 of 25

Limestone can be a very jointed type of rock. Which drainage pattern would you expect to see as a result?

  A. Radial

  B. Trellis

  C. Dendritic

  D. Rectangular.

Question 10 of 25

The appearance of sinkholes and caves in an area is called ________.

  A. speleothem topography.

  B. karst topography.

  C. permeable topography.

  D. limestone topography

Question 11 of 25

What forms when the underlying rock is dissolved and the surface collapses?

  A. crater

  B. cavern

  C. speleothem.

  D. sinkhole

Question 12 of 25

What is the hydrologic cycle?

 A. it is a cycle that started when humans began overconsumption of water

  B. it illustrates the linear step by step way water moves

  C. the cycle that illustrates how water cycles in, on and above the Earth

  D. the cycle that illustrates how water cycles on the surface of the Earth

Question 13 of 25

How deep do wave motions go into the water, i.e. the wave base?

  A. Wavelength times amplitude

  B. Twice amplitude

  C. 1/2 amplitude

  D. 1/2 wavelength.

  E. Twice wavelength

Question 14 of 25

What persistent behavior of waves produces longshore drift?

  A. The number of waves in the wave train

  B. Angle that waves hit the shoreline.

  C. Wavelength of the waves

  D. Speed of the waves

  E. Fetch of the waves

Question 15 of 25

Thermohaline circulation is important for Earth because this process

  A. Brings surface sediments to the deep parts of the ocean

  B. Brings deep sediments to the surface of the ocean

  C. Moves heat around the planet, distributing it

  D. Main transportation for ocean life

  E. Prevents ocean water from freezing by adding salt

Question 16 of 25

Which type of tide results in the highest level of water?

  A. Berm

  B. Neap

  C. Ebb

  D. Flood

  E. Spring

Question 17 of 25

What is the purpose of a jetty?

  A. Protect the beach from larger waves

  B. Keep an entryway to a harbor open.

  C. Provide a new location for a beach

  D. Stop a beach from eroding away

  E. Funnel currents away from a marina

Question 18 of 25

How long is a tidal day?

  A. Exactly 12 hours

  B. Depends on the location

  C. Slightly more than 12 hours

  D. Slightly more than 24 hours.

  E. Exactly 24 hours

Question 19 of 25

1. ____________ causes surface currents, ___________ causes deep currents.

  A. Moon; density

  B. Wind; moon

  C. Density; moon

  D. Wind; density

  E. Density; wind

Question 20 of 25

Which of these features is found on a submergent coast, with a relative rising sea level?

  A. Marine terrace

  B. Sea arch

  C. Lagoon.

  D. Sea stack

  E. Tombolo

Question 21 of 25

Which of the following is an example of a coastal hazard?

  A. tombolo

  B. rip current.

  C. berm.

  D. baymouth bar

  E. spit

Question 22 of 25

The Sun and Moon control ________.

 A. gyres

  B. waves.

  C. tides. .

  D. currents.

Question 23 of 25

As waves pass, water particles move in __________ motions?

  A. Tranverse

  B. Sinusoidal

  C. Vertical

  D. Horizontal

  E. Circular.

Question 24 of 25

Within a drainage system_____________.

  A. all runoff infiltrates the ground

  B. all runoff forms only one channel

  C. all water flows downhill.

  D. water can change which side of the divide it is on

Question 25 of 25

Braided channels form when the________.

  A. the source of sediment is more than the water flow can handle

  B. velocity is slow

  C. sediment load is low.

  D. stream discharge is high