Finals

Question 1

The Rhizosphere is the narrow zone of the soil directly surroundings plant roots

Answer 1

TRUE

Question 2

Soil Flora initiates the breakdown of dead plant and animal material

Answer 2

FALSE ( Soil Fauna)

Question 3

A fertile soil will contain only the major nutrients for basic plant nutrition

Answer 3

FALSE ( contain all)

Question 4

A fertilizer can be organic or inorganic material of natural of synthetic origin

Answer 4

TRUE

Question 5

In agriculture, soil erosion refers to the wearing away of a field’s subsoil by the natural physical forces of water and wind or through forces associated with farming activities such as tillage

Answer 5

FALSE ( topsoil)

Question 6

The lesser the control practice done in place, the higher the value of the erosion control practice factor in the universal soil loss equation

Answer 6

TRUE

Question 7

When foundations of any structure are constructed on compressible soil, it leads to plasticity

Answer 7

FALSE (it leads to settlement)

Question 8

The soil density is the ratio of the mass of soil solids to the mass of an equal volume of water

Answer 8

FALSE (specific gravity)

Question 9

The calculated bearing pressures should be equal to the allowable bearing pressures

Answer 9

FALSE ( need to be less than)

Question 10

Footings are always subjected to lateral loads

Answer 10

FALSE (often)