Two soil samples, A and B, at different soil moisture levels are placed in contact with each other. ...

Two soil samples, A and B, at different soil moisture levels are placed in contact with each other. Water will more likely move from soil A to soil B if their water potentials, expressed in kPa, are ________.

A) A=-30; B=-40
B) A=-5; B=-5
C) A=-20; B=-10
D) A=-5; B=+5
E) A=-100; B=-50

Question 2

Subsoiling is a primitive deep tillage technique that results in extremely high subsoil bulk density.

Indicate whether the statement is true or false

Question 3

Engineers use the Proctor test to help them compact soil to the maximum density possible.

Indicate whether the statement is true or false

Question 4

For any soil, the bulk density is always lower than the particle density.

Indicate whether the statement is true or false

Question 5

Polysaccharides produced by soil microbes and similar synthetic polymers applied to soils are largely responsible for the crusts that form when rain follows tillage.

Indicate whether the statement is true or false

Question 6

When preparing a surface soil seedbed, the soil should generally be in the loosest, least dense soil condition in the row where the seed is placed.

Indicate whether the statement is true or false

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Two soil samples, A and B, at different soil moisture levels are placed in contact with each other. ...

Elements of Nature and Property of Soils

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