JEG100 Final MC Question and answers
already passed
The Mid-Atlantic Ridge is an example of a:
a. a convergent plate boundary
b. a divergent plate boundary
c. a transform plate boundary
d. a subduction zone
e. both A and D - correct answer ✔b. a divergent plate boundary
Which was least relevant to supporting the theory of plate tectonics in the
1970s:
a. Paleo-magnetic data
b. Sea floor mapping
c. Correlating fossil assemblages
d. Satellite remote sensing
e. Deep-ocean drilling to collect cores - correct answer ✔d. Satellite remote
sensing
The oldest ocean crust is:
a. 2 million years old
b. 20 million years old
c. 200 million years old
d. 2 billion years old - correct answer ✔c. 200 million years old
Which of the following features is not associated with karst landscapes:
,a. Sinkholes
b. Meandering streams
c. Limestone bedrock
d. Underground caverns - correct answer ✔b. Meandering streams
When feldspar undergoes chemical weathering:
a. Karst landforms are produced
b. Solutes such as K+ or other ions enter surrounding water
c. Clay minerals are produced
d. Quartz is produced
e. Both B and C - correct answer ✔e. Both B and C
Which of the following lists sediments in order of decreasing grain size:
a. Boulder, pebble, silt, clay
b. Boulder, silt, sand, clay
c. Pebble, boulder, sand, silt
d. Cobble, clay, boulder, sand
e. Clay, silt, sand, granule - correct answer ✔a. Boulder, pebble, silt, clay
Which is not an example of a parent material where soils can develop:
a. Glacial ice
b. Glacial deposits such as till
c. Bedrock composed mainly of silicate rocks
d. Bedrock composed mainly of limestone
e. Sand - correct answer ✔a. Glacial ice
, Which are important controls on pedogenesis:
a. Temperature and precipitation
b. Chemical weathering
c. Parent Material
d. A and B only
e. A, B and C - correct answer ✔e. A, B and C
Eluviation:
a. is the downward transport of fine materials from upper parts of a soil profile
b. is the accumulation of fine materials in lower parts of a soil profile c. takes
place in the C horizon
d. depends on type of rock in the parent material e. is higher in drier climates -
correct answer ✔a. is the downward transport of fine materials from upper
parts of a soil profile
Salt deposits are most likely to be found in soils of:
a. Tropical rainforest
b. Boreal forest
c. Arid (= dry regions)
d. Wetlands
e. The tundra - correct answer ✔c. Arid (= dry regions)
The desert biome is characterized by:
a. High biomass production, high biodiversity
b. Low biomass production, low biodiversity
c. High albedo surfaces
already passed
The Mid-Atlantic Ridge is an example of a:
a. a convergent plate boundary
b. a divergent plate boundary
c. a transform plate boundary
d. a subduction zone
e. both A and D - correct answer ✔b. a divergent plate boundary
Which was least relevant to supporting the theory of plate tectonics in the
1970s:
a. Paleo-magnetic data
b. Sea floor mapping
c. Correlating fossil assemblages
d. Satellite remote sensing
e. Deep-ocean drilling to collect cores - correct answer ✔d. Satellite remote
sensing
The oldest ocean crust is:
a. 2 million years old
b. 20 million years old
c. 200 million years old
d. 2 billion years old - correct answer ✔c. 200 million years old
Which of the following features is not associated with karst landscapes:
,a. Sinkholes
b. Meandering streams
c. Limestone bedrock
d. Underground caverns - correct answer ✔b. Meandering streams
When feldspar undergoes chemical weathering:
a. Karst landforms are produced
b. Solutes such as K+ or other ions enter surrounding water
c. Clay minerals are produced
d. Quartz is produced
e. Both B and C - correct answer ✔e. Both B and C
Which of the following lists sediments in order of decreasing grain size:
a. Boulder, pebble, silt, clay
b. Boulder, silt, sand, clay
c. Pebble, boulder, sand, silt
d. Cobble, clay, boulder, sand
e. Clay, silt, sand, granule - correct answer ✔a. Boulder, pebble, silt, clay
Which is not an example of a parent material where soils can develop:
a. Glacial ice
b. Glacial deposits such as till
c. Bedrock composed mainly of silicate rocks
d. Bedrock composed mainly of limestone
e. Sand - correct answer ✔a. Glacial ice
, Which are important controls on pedogenesis:
a. Temperature and precipitation
b. Chemical weathering
c. Parent Material
d. A and B only
e. A, B and C - correct answer ✔e. A, B and C
Eluviation:
a. is the downward transport of fine materials from upper parts of a soil profile
b. is the accumulation of fine materials in lower parts of a soil profile c. takes
place in the C horizon
d. depends on type of rock in the parent material e. is higher in drier climates -
correct answer ✔a. is the downward transport of fine materials from upper
parts of a soil profile
Salt deposits are most likely to be found in soils of:
a. Tropical rainforest
b. Boreal forest
c. Arid (= dry regions)
d. Wetlands
e. The tundra - correct answer ✔c. Arid (= dry regions)
The desert biome is characterized by:
a. High biomass production, high biodiversity
b. Low biomass production, low biodiversity
c. High albedo surfaces
