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