Soil
Authored by Cheryl Coleman
Other Sciences
6th - 8th Grade
Used 1K+ times
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21 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Physically breaking down rocks and materials is called__________weathering.
Chemical
Mechanical
Biological
Permeable
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A rock containing iron is soft, crumbly, reddish in color. It's been chemically weathered by__.
Carbon Dioxide
Oxygen
Nitrogen
Sulfer
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Soil formation begins with the weathering of_______.
Humas
Subsoil
Litter
Rock
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The layer of soil which the topsoil is found.
Horizon A
Horizon B
Horizon C
Horizon D or R
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The MAIN thing Decomposers do for the the soil is the following:
Store moisture
Burrow deep in the soil
Make space for air and water
Break down and digest dead organisms
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
The MAIN thing Decomposers do for the the soil is the following:
Store moisture
Burrow deep in the soil
Make space for air and water
Break down and digest dead organisms
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What effect did over plowing and cutting down trees in the Great Plains during the 1930’s?
It had little effect
It increased soil fertility
It was a primary cause of the Dust Bowl
Farmers had a great harvest
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