West Los Angeles College » Geology » Geology 001 - Physical Geology » Summer 2021

Question #1

_____ refers to the area of land that captures precipitation and contributes runoff to a stream or stream segment.

A. watershed

B. tributary

Question #2

How does an oxbow lake form?

A. when a point bar has depressions

B. when a river floods and water ponds in a floodplain depression

C. when a river entrenches its floodplain

D. when a river confluence is left behind

E. when a meander is cut off and abandoned

Question #3

Springs, gaining streams, flowing wells, and playas or mid-basin wetlands can all signify a groundwater discharge area.

A. TRUE

B. FALSE

Question #4

All of the following are examples of nonpoint sources of groundwater contamination types, except:

A. nutrients (nitrate and phosphate), herbicides, pesticides contributed by farming

B. residential areas

C. many residents using fertilizer

D. sewage treatment plants

E. nitrate contributed by animal operations