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Soils
Test Description: Module 8: soil
Instructions: Answer all questions to get your test result.
1) Soil conservation is a?
A
method to maintain soil fertility and thereby protect soil from erosion and nutrient loss.
B
method of keeping dirt
C
place where soil sings
D
method of hoarding soil
2) what is loam
A
sand+ silt + salt
B
silt+oil+clay
C
sand+ silt + clay
D
lava+clay+water
3) What makes the best soil mixture
A
loam and water
B
loam and humus
C
humus and sand
D
humus and carrots
4) What is topsoil
A
the dirt on top
B
the uppermost soil horizon
C
dirt for gardening
D
the middle soil plane
5) what has a PH around 7
A
good soil
B
neutral soil
C
alkaline soil
D
acidic soil
6) What is rock weathering
A
Breaking of rocks into smaller fragments
B
weather that is rocking
C
leaving your rocks in the rain
D
rocks worn down
7) mechanical weathering is
A
caused by a machine breaking rocks into smaller parts
B
a mechanic in the weather
C
caused by plant roots that grow through rocks and break them into smaller parts
D
the wearing down of a mechanic by the weather
8) What can cause weathering by seeping into cracks in rocks and freezing.
A
icecream
B
water
C
snow
D
Ice
9) Name four techniques used for maintaining soil fertility and protecting soil from erosion and nutrient loss
A
contour ploughing, terracing, cover crops, crop rotation
B
countour ploughing, retention walls, crop rotation, water reduction
C
fertilizer, crop rotation, retention walls, irrigation systems
D
terracing, cover crops, crop rotation, irrigation
10) is an especially powerful way to cause chemical weathering
A
Acid rain
B
sea water
C
rain
D
oil
*select an answer for all questions
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