Question

soil characteristics worksheet
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1. the living portion of the soil is the ______.

a. organic part
b. inorganic part
c. neutral part
d. none of the above

1. millions of organisms live within the soil.

a. true
b. false

1. permeable soil does not allow water to flow through it easily.

a. true
b. false

1. soil that contains a mixture of grain sizes is called ______.

a. loam
b. clay
c. silt
d. none of the above

Explanation:

Question 1

The living portion of soil consists of organic matter like microorganisms, plants, etc. The organic part of soil includes living or once - living components. The inorganic part is non - living (like minerals), and a neutral part is not a recognized term for the living portion. So the living portion is the organic part.

Soil is a rich ecosystem. It contains a vast number of organisms such as bacteria, fungi, earthworms, insects, etc. So the statement "Millions of organisms live within the soil" is true.

Permeability refers to the ability of a material (in this case, soil) to allow fluids (like water) to pass through it. So permeable soil should allow water to flow through it easily. The given statement says the opposite, so it is false.

Answer:

a. Organic part

Question 2