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WorksheetsSoils & Agriculture Test
Total questions: 18
Worksheet time: 5hrs 30mins
The very top layer of soil is mostly made of
Solid rock
Clay and mineral deposits
A mixture of minerals and organic material
Mostly organic material (humus)
The content of the soil, its depth and texture significantly influence agricultural activity
TRUE
FALSE
What name is given to the soil conservation technique used on steep slopes?
Tilling
Crop Rotation/ Shifting
Terracing
Windbreaks
Which of the following chemicals is used by farmers to protect their crops from pests?
Pesticides
Fertilizers
Cow Manure
Green Manure
Which of the following methods of farming enables farmers to grow different crops on the same land depending on the season?
Crop rotation
Drip irrigation
Crop cultivation
Ploughing
The bottom layer of soil is mostly made of
Solid rock
Clay and mineral deposits
A mixture of minerals and organic material
Mostly organic material (humus)
Besides weathering, how is soil created?
Acid rain dissolves rocks
Organisms like worms make room for air and water to enter
Plants break down stones into smaller bits
Rocks degrade over time
Soil formation is NOT influences by
Topography
Climate
Texture
Biological Activity
Which is NOT a characteristic of soil
Color
Clay Content
Organic Material
Texture
How do windbreaks conserve soil?
Cut platforms into steep slopes to prevent runoff
Mini terraces prevent excess water loss
Dead crops left to fertilize the ground
Vegetation prevents soil erosion by wind
Leaving leftover crop remains on soil instead of tilling under is an example of what kind of soil conservation method?
No tilling
Terracing
Perennial Crops
Strip Cropping
How does limestone improve soil fertility?
Neutralizes acidic soil
Releases nutrients into the soil from decomposing crop remains
Adds back missing nutrients using plants
Adds moisture to the soil
Rotational grazing benefits include
Removing harmful plants
Increasing herd size
Preserving plants and soil
Compacting the soil for other animals
One cost of the Green Revolution might be
Major increase in energy usage
Habitat loss and deforestation
Reduced crop yield
Increase in "super-pests"
Should agricultural practices become more sustainable?
Yes
No
What soil layer is under the top soil, where the roots grow?
Weathered bedrock
Topsoil
Bedrock
Subsoil
Organic Materials does NOT includes
Leaves and twigs
Animal waste
Rocks
Fungus
