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Chapter 6
Test
25
Environmental Studies
9th Grade
03/26/2013

Additional Environmental Studies Flashcards

 


 

Cards

Term
The water cycle is the ________
Definition
Unending circulation of Earth's water supply
Term
Plants release water into the atmosphere through a process called ________
Definition
Transpiration
Term
Balance in the water cycle means that ________
Definition
The average annual precipitation over Earth equals the amount of water that evaporates
Term
The ability of a stream to erode and transport material depends largely on its _______.
Definition
Velocity
Term
The single most important erosional agent on Earth is ________.
Definition
Running water
Term
If you were to examine the profile of a typical stream, you would probably find that the gradient is ________.
Definition
Steepest near the head
Term
A stream's discharge _______.
Definition
Increases between its source and mouth
Term
Base level is _______.
Definition
The lowest point to which a stream an erode its channel
Term
What is the ultimate base level of a stream?
Definition
The ocean
Term
Most streams carry the largest part of their load _______.
Definition
In suspension
Term
The suspended load of a stream _______.
Definition
Usually consists of fine sand, silt, and clay-sized particles
Term
A depositional feature that forms where a stream enters an ocean is a(n) _______.
Definition
Delta
Term
In a stream channel, which of the following will be deposited first?
Definition
Gravel-sized particles
Term
The flat portion of a valley floor adjacent to a stream channel is called a _______.
Definition
Floodplain
Term
The most prominent features of a narrow, V-shaped valley, where the stream profile drops rapidly, are _______.
Definition
Rapids and waterfalls
Term
One traditional flood control method has been to attempt to keep the stream's flow within its channel by creating ______.
Definition
Artificial levees
Term
A drainage basin is ________.
Definition
The land area that contributes
Term
Groundwater is found underground in the zone of ______.
Definition
Saturation
Term
Permeable rock layers or sediments that transmit groundwater freely are called ________.
Definition
Aquifers
Term
The percentage of the total volume of rock or sediment that consists of pore spaces is called ________.
Definition
Porosity
Term
Which of the following is a measure of a material's ability to transmit fluids through interconnected pore spaces?
Definition
Permeability
Term
Springs form where ________.
Definition
The water table intersects
Term
When groundwater enters underground fractures or caverns in hot igneous rocks, where it is heated to building temperatures, what feature can form?
Definition
Term
Which of the following statements is true about stalactites?
Definition
Term
Which of the following is associated with areas of karst topography?
Definition
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