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Geology 2
Test Description: Geology
Instructions: Answer all questions to get your test result.
1) Tropical rain forests are being cut down to create farms and pastures, and to harvest trees for construction. What has this type of deforestation increased?
A
soil moisture
B
microorganisms
C
soil erosion
D
fertilizers
2) Which is one practical way homeowners can conserve water?
A
Use drip irrigation to water the lawn
B
Re-use waste water for drinking
C
Collect rainwater for irrigation of landscape plants and grass
D
Use native plants in the home landscape
3) Fossils of marine plants and animals were found high above sea level in the Himalayan Mountains. What does this fossil evidence tell us about the past of that mountainous area?
A
The area was once part of another continent.
B
Many volcanoes erupted in that location
C
The area was once sediment under the ocean.
D
Sea level was much higher.
4) Farmer John has cut down a stand of pine trees so he can plant corn in the spring. What would be a practical solution to help stop soil erosion during the fall and winter?
A
Plow the corn under
B
Surround the corn field with shrubs and a fence
C
Let cows graze in the field
D
Dig a pond next to the corn field
5) There is a long drought and hay is in short supply. Farmer John is forced to let his cattle over-graze his pastures. Because of the over-grazing, what do you predict will happen?
A
The soil will be eroded by wind and water.
B
The soil will become water soaked in the spring.
C
The soil will become more fertile.
D
The grass will grow faster.
6) Chemical weathering of rocks occus and helps to form soils. Which of the following is an agent of chemical weathering?
A
acid rain
B
rocks tumbling in a stream or river
C
freezing and thawing
D
tree roots growing through rocks
7) In cold climates rocks are broken into pieces by the action of water. This process that breaks down rocks and helps form soil can best be explained as
A
decomposition due to the action of ice crystals
B
leaching of minerals from the rock
C
mechanical weathering due to alternate freezing and thawing
D
chemical weathering due to water reacting with calcite
8) Soils have four basic components. What important soil component is a by-product of the action of decomposers like bacteria and fungus?
A
air space
B
humus
C
minerals
D
silt
9) In December 2004, an earthquake registering 9.0 on the Richter scale was recorded off the coast of Sumatra. What is a common secondary effect of this type of earthquake?
A
volcanic activity
B
a tornado
C
a tsunami
D
global warming
10) If we compare the temperature and pressure of the Earth's mantle to the core, what differences can we expect as we move downward into the Earth?
A
Both the temperature and pressure increase
B
Both the temperature and pressure decrease
C
The temperature increases and the pressure decreases
D
The temperature decreases and the pressure increases
*select an answer for all questions
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