Earth Science HW 9

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Complete this analogy: Bouncing is to sand as suspension is to_____________.

clay

Which of the following are examples of e-waste?

computer DVD player microwave

What is suspended load?

the fine-grained particles that travel in the water column above the stream bed

When will a cone of depression stop enlarging?

when the amount of water flowing toward the well equals the amount of water being pumped out of the well

When might a well, Well A, go dry?

when the cone of depression of a second well intersects the deepest part of Well A

What has happened to about 80% of the e-waste collected in the United States by recyclers?

The electronics were sent to developing countries.

What is the cone of depression?

the shape that the water table takes on near a pumping well

Where do deposition and erosion of material occur along a meander?

Deposition occurs on the inside of the meander, whereas erosion occurs on the outside.

How does the water table change around a pumping water well?

The water table elevation decreases.

What is a meander scar?

a landscape feature formed after an oxbow lake dries up

What is an oxbow lake?

a meander that has been cut off from the original stream channel

What are the three types of loads carried by streams?

bed load, suspended load, dissolved load

When computers are recycled in the United States in ways that limit environmental pollution, they are ____.

disassembled into their basic parts and recycled in various ways

What is the dominant fluvial process in a clear, sediment-poor stream moving down a steep slope?

downcutting

Complete this analogy: Sliding is to gravel as dissolution is to_____________.

ions

One of the most toxic components of a computer is the _____.

lead embedded in the glass of the monitor

What type of stream is associated with the formation of an oxbow lake?

meandering stream

How can pieces of rock in contact with a stream bed move?

rolling, sliding, bouncing

Which of the following are part of the bed load? CHOOSE ALL THAT APPLY. ions clay sand gravel

sand and gravel

One of the main messages in the film about e-waste is that responsible consumers _____.

should recycle outdated electronics

Which processes result in the widening of the floodplain of a meandering stream?

undercutting and lateral erosion

How are oxbow lakes formed?

Oxbow lakes form when one meander erodes into another, cutting off water to part of the stream channel.


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