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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 of hoarding soil
B
method to maintain soil fertility and thereby protect soil from erosion and nutrient loss.
C
method of keeping dirt
D
place where soil sings
2) what is loam
A
sand+ silt + salt
B
silt+oil+clay
C
lava+clay+water
D
sand+ silt + clay
3) What makes the best soil mixture
A
loam and water
B
humus and sand
C
humus and carrots
D
loam and humus
4) What is topsoil
A
dirt for gardening
B
the middle soil plane
C
the uppermost soil horizon
D
the dirt on top
5) what has a PH around 7
A
good soil
B
alkaline soil
C
acidic soil
D
neutral soil
6) What is rock weathering
A
leaving your rocks in the rain
B
weather that is rocking
C
Breaking of rocks into smaller fragments
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
the wearing down of a mechanic by the weather
D
caused by plant roots that grow through rocks and break them into smaller parts
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
fertilizer, crop rotation, retention walls, irrigation systems
C
terracing, cover crops, crop rotation, irrigation
D
countour ploughing, retention walls, crop rotation, water reduction
10) is an especially powerful way to cause chemical weathering
A
Acid rain
B
oil
C
sea water
D
rain
*select an answer for all questions
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