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- 1. Multiple Choice
Which one of the following is a step in the formation of soil?
Earthquakes and volcanic eruptions
Weathering of rocks
Addition of hummus
All of these
- 2. Multiple Choice
Which of the following does not cause soil erosion?
Deforestation
Terrace farming
Floods
Overgrazing
- 3. Multiple Choice
Soil conservation measures are mainly aimed at protecting
Plants
top soil
Sub soil
soil organisms
- 4. Multiple Choice
In which horizon of soil minerals are found?
A
B
C
None of these
- 5. Multiple Choice
The best top soil for growing plants is
sandy soil
loamy soil
clayey soil
all of these
- 6. Multiple Choice
The mixture of rock particles and humus is called
soil
Weathering
Silt
Gravel
- 7. Multiple Choice
Cotton grows well in
Black soil
Red soil
Clayey soil
Loamy soil
- 8. Multiple Choice
In which of the following humus is present in reasonable amount
A
B
C
bedrock
- 9. Multiple Choice
Which horizon consists of small lumps of rocks with cracks and crevices?
A
B
C
None of these
- 10. Multiple Choice
Soil that can retain water in it
Sandy
Loamy
Clayey
Black
- 11. Multiple Choice
Soil that cannot retain water in it
Sandy
Loamy
Clayey
Black
- 12. Multiple Choice
Soil that contains more nutrients, humus and moisture
Sandy
Clayey
Loamy
Black
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