What part of the earth land has soil for agriculture? one  paragraph Why did the

What part of the earth land has soil for agriculture? one  paragraph
Why did the dust bowl happen?
How do we protect our soils today from this erosion?
What laws were enacted after the dust bowl to protect our soil?
What can you see as evidence today that farmers, constructions workers and transportation departments to protect soil?
Is soil alive?
How do soil profiles change? paragraph
 
What is field capacity? paragraph
 
Class:  Which is more important in determining soil use, soil profiles or soil composition? paragraph
Why we can’t get to inner earth?

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