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Earth Redemption

Posljednje ažuriranje about 1 year ago

5

1

Pitanje 1

1.

A farm is experiencing extensive crop loss due to high rains causing overly saturated soils. Which of the following approaches would best help the farm alleviate the problem?

Fertilizing the area with manure to eliminate the need for inorganic chemical fertilizers

Amending the soil with clay to increase the water-holding capacity of the soil

Amending the soil with sand to increase the permeability of the soil

Using contour plowing to decrease soil erosion

1

1

1

1

Pitanje 2

2.

A team at a university in Pennsylvania has concerns about the health of streams in a watershed because of the various land uses in the area. There has been an increase in road repair work, and the area has many dairy farms. Which of the following would be most effective at preventing sediment runoff into the streams of the watershed?

Have construction crews steepen the slopes of the valleys of streams near roadwork zones.

Maintain zones of grass at least 100m wide on the sides of streams in the area.

Construct at least one dam on a stream in the watershed to improve flood control.

Shift from dairy farming to corn planted in agricultural fields located within 100m of streams.

Pitanje 3

3.

Which of the following statements correctly explains the tectonic plate activity on the West Coast of the United States?

The Cascade Mountains were formed when two continental plates converged.

Earthquakes occur at the San Andreas Fault when stored energy is released from locked plates.

The divergence of two plates has led to the formation of volcanoes in the Cascade Mountains.

Movement of plates along the San Andreas Fault created the Cascade Mountains.

Pitanje 4

4.

At this site a 9.0 magnitude earthquake, which occurred at a nearby subduction zone, triggered one of the largest nuclear reactor disasters in history.

A

B

C

D

Pitanje 5

5.

Which soil horizon is best developed in areas with dense vegetation, such as forests and grasslands, since the horizon consists of decomposing leaves and other plant material?

A

B

C

D