Because Most Roots Need Gaseous Oxygen as Well as Liquid

question 27

Multiple Choice

Because most roots need gaseous oxygen as well as liquid water,the best soil for agricultural plants is

• A)sand,since it has the greatest pore spaces.
• B)clay,since it holds onto water better than silt or sand.
• C)silt,because it is intermediate between sand and clay in size.
• D)loam,which is a mixture of all size soil particles,and therefore is able to hold water but drain well.
• E)All sizes of soil particles (sand,silt,clay)are equal in soil properties.

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Definitions:

Payrolls

The total amount of wages and salaries paid by a business or organization to its employees, usually recorded over a specific period of time.

Elasticity of Resource Supply

A measure of how responsive the quantity supplied of a resource is to a change in price.

Elasticity of Product Demand

The degree to which the demand for a product changes in response to a change in its price.

Labor Costs

The total expenditure by businesses for paying their employees, including wages, benefits, and taxes.