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chapter 8 study guide question
sdfxdf
13
Science
8th Grade
03/26/2008

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Term
What does it mean to say that Earth's water cycle is balanced ?
Definition
Each part of the water cycle rely on eacother. For example, it cannot rain if no water is evaporated !
Term
What is the energy source of the water cycle ?
Definition
The sun .
Term
What is the most important factor in determining the power of a stream to erode and transport materical ?
Definition
The more velocity, the faster it erodes.
Term
How do gradient and discharge change between a stream's source and its mouth?
Definition
discharge will increase as the gradient increases
Term
What is the most important erosional agent of earth?
Definition
water
Term
How does stream deposition occur ?
Definition
As streamflow drops below setting velocity
Term
What are some causes of floods?
Definition
Heavy rain, snow melt, etc...
Term
What are some flood control measures?
Definition
Artificial levees, dams, limited developement .
Term
What type of rock is associated with caverns?
Definition
limestone
Term
How do caverns form ?
Definition
Erosion
Term
What are some environmental threats to groundwater supplies ?
Definition
Overuse and contamination .
Term
How and where do most caverns form?
Definition
At or below the water table in the zone of saturation
Term
What is the best part of www. ?
Definition
MySpace !
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