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Glossary of esci 21-40

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Created by xjf228x

21. Sources of groundwater contamination include:
a. pesticides and fertilizers
b. oil
c. salt water
d. landfills/waste
e. all of the above








all of the above
22. When sediment is floating in a stream creating “murky” water, the sediment is moving (transported) as part of its _____________ load.
a. dissolved
b. suspended
c. bed
d. sorting
e. flooding








suspended
23. This drainage pattern occurs when streams diverge from a central elevated area.
a. rectangular
b. radial
c. dendritic
d. trellis





radial
24. To achieve flood control, ___ involves altering a stream channel in order to speed the flow of water.
a. entrenchment/ b. rectifying
c. channelization
d. rejuvenation
e. replenishment







channelization
25. The single most important erosional agent is/are ____________
a. running water
b. glaciers
c. wind
d. waves
e. plants and animals




running water
26. The continuous movement of water from the oceans to the atmosphere, from the atmosphere to the land, and from the land back to the sea is known as ____________
c. the Hydrologic cycle






the Hydrologic cycle
27. The deposition of sediment based on the size of the particle is called _____
a. erosion/b. transportation
c. bed load/d. weathering
e. sorting






sorting
28. Seismologists are currently looking at animal behavior as a gauge to seismic activity. a.True
b. False




true
29. Ultimate base level is sea level.
a. True
b. False





true
30. Karst topography is mainly the result of acid precipitation meeting and dissolving the limestone bedrock.
a. True
b. False

true
31. As its name implies, the water table is always very level (flat).
a. True
b. False





false
32. Which erosional features r exhibited by an older stream?
a. deltas, oxbow lakes, natural levees
b. nat levees, back swamps, pt bars
c. cutbanks, u-shaped river beds, wide flood plains
d. all of the above









all of the above
33. The steeper the slope of a mountain, the higher the chance for mass wasting to occur.
a. True
b. False



true
34. The water table separates the zone of aeration and the zone of saturation.
a. True
b. False





true
35. Tsunamis are tidal waves that are often caused by the gravitational forces of the Earth, Moon, and Sun.
a. True
b. False



false
36. Chemical weathering would be most effective
a. in a warm, dry climate
b. in a cold, dry climate
c. in a warm, humid climate
d. equally in any kind of climate



in a warm, humid climate
37. Which is not tru about mechanical weathering?
a. prod smaller pieces
b. adds 2 the effectiveness of chem weathering
c. may lead 2 da formation of talus slopes
d. does not change the rock’s mineral composition
e. does not affect metamo




does not affect metamorphic rocks
38. The center or inner core of the Earth is composed mainly of iron (Fe) and Nickel (Ni).
a. True
b. False





true
39. The incorporation and transportation of material by water, wind, or ice describes the process of ___
a. weathering/b. erosion
c. mass wasting/d. sheeting
e. none of these




erosion
40. Oceanic crust tends to be less dense than continental crust
a. True
b. False

false

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