Download QUIZ 5 - Brooklyn College

Quiz 7
MULTIPLE CHOICE
1. What type of weathering will break a rock by the contraction and expansion of
water to ice?
o
A) Frost wedging
2. __________________consists of sediment particles that are mechanically
transported by suspension within a stream or river.
o
B) suspended load
3. A _______ involves a rotational movement of rock or regolith.
o
D) slump
4. Glacial ______________ are usually multiple, straight, and parallel,
representing the movement of the glacier using small rocks and pebbles,
embedded in the base of the glacier, as cutting tools.
o
C) striations
5. Small boulders carried along underneath the glacier provide the abrasive power
to cut trough-like glacial ________________.
o
A) grooves
6. ____________ is the set of processes that breaks down the rock in place, no
movement is involved.
o
B) weathering
7. As soon as a rock particle (loosened by the weathering processes) is transported
somewhere else, that process is called __________.
o
A) erosion
8. __________________ is simply movement down slope due to gravity.
o
D) mass wasting
9. ___________________________ involves a chemical change in at least some
of the minerals within a rock during its break down.
o
B) chemical weathering
10. ___________________________ involves physically breaking rocks into
fragments without changing the chemical make-up of the minerals within it.
o
A) mechanical weathering
11. _______________ is the breakdown of the rock in place (in situ
o
B) Weathering
12. _______________ is the transportation of this loose material mainly by
water, but also by wind (Aeolian), ice and gravity.
o
A) Erosion
13.___________________ weathering involves a chemical change in at least
some of the minerals within a rock during its break down.
o
C) Chemical
14.___________________ weathering involves physically breaking rocks into
fragments without changing the chemical make-up of the minerals within it.
o
D) Mechanical
15. ____________ is an example of mechanical weathering produced by the
action of plants roots breaking up rocks.
o
D) Root wedging
16. ____________ is an example of mechanical weathering produced by the
freezing and thawing of water.
o
B) Frost wedging
17. ________________ - Organic matter (The uppermost horizon in many soil
profiles.)
o
C) O Horizon
18. ________________ - Dark-colored layer of mixed mineral and organic matter
(typically dark in color because of the humus present)
o
B) A Horizon
19. ________________ - Light-colored layer marked by removal of soluble
material ( typically grayish in color because it contains little humus, more
common in acidic soils of evergreen forests).
o
A) E Horizon
20. ________________ - Maximum accumulation of clay minerals (Brownish or
reddish in color because of the presence of iron hydroxides from transported
horizons above.
o
E) B Horizon
21. ________________ - Weathered parent rock.
o
D) C Horizon
TRUE OR FALSE
22. Suspended load is sediment that is moved along the bottom of a stream,
mainly boulder cobbles and pebbles are pushed by the water.
o
FALSE
23. The sand grains are also pushed along the bottom of a river by a process
called saltation (jumping).
o
TRUE
24. Bedload is the sediment that is carried in suspension by a flowing stream of
water, the sediment here is mainly silt and clay.
o
FALSE
25. Dissolved load - soluble materials that are carried on top of the stream along
with floating organic matter.
o
FALSE