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Soil Saving
Test Description: J. Describe methods for conserving natural resources such as water, soil, and air.
Instructions: Answer all questions to get your test result.
1) The process of changing one steep field into a series of smaller, flatter fields is called
A
terracing.
B
cover crops.
C
contour plowing.
D
crop rotation.
2) The practice of leaving old stalks to provide cover from rain in order to reduce water runoff and soil erosion is called
A
crop rotation.
B
no-till farming.
C
cover crops.
D
terracing.
3) What is it called when a farmer plants different crops in order to use less nutrients or different nutrients from the soil?
A
crop rotation
B
terracing
C
contour plowing
D
no-till farming.
4) Which soil conservation technique prevents erosion on steep hills by heavy rains?
A
terracing
B
no-till farming.
C
cover crop
D
contour plowing
5) Which soil conservation technique helps restore nutrients to the soil?
A
cover crop
B
contour plowing
C
terracing
D
no-till farming
6) Which soil conservation technique helps prevent erosion of sloping hills by heavy rains
A
terracing
B
contour plowing
C
cover crop
D
no-till farming
7) A way to keep soil fertile by protecting it from erosion is called ____________________.
A
soil conservation
B
soil fertility
C
Soil structure
D
soil texture
8) Gardeners want a layer of rich ____________________ for their vegetable gardens.
A
subsoil
B
topsoil
C
bedrock
D
soil particles
9) The dark, organic material formed in soil from the decayed remains of plants and animals
A
erosion
B
humus
C
bedrock
D
weathering
10) Plants and trees protect the soil from ____________________ by acting as anchors to the soil.
A
weathering
B
differential weathering
C
mechanical weathering
D
erosion
11) What is a a soil horizon?
A
An organism found within the soil
B
A layer of soil
C
A technique used to map soils
D
A factor influencing how soil is formed
12) Why is organic matter (humus) an important part of soil?
A
It converts nitrogen in the air into nitrates used by plants
B
It is rich in nutrients, which is important for fertility
C
It helps to improve water infiltration
D
It can break down organic pollutants
13) What is soil erosion?
A
A process often referred to as the 'greenhouse' effect
B
A harmful process that involves the removal and transport of soil by wind and water
C
A natural method of filtering harmful pollutants
D
It is the process by which soil is formed
*select an answer for all questions
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