How Is the New Strain of Wheat Stem Rust Fungus

question 137

Multiple Choice

How is the new strain of wheat stem rust fungus spreading around the world?

• A) spores are carried by birds
• B) viral vectors carried in insects
• C) imported infected wheat
• D) wind dispersal of spores
• E) none of these

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Definitions:

Average Total Cost

The cost per unit is calculated by dividing the overall production cost by the quantity of units produced.

Average Variable Cost

The total variable cost divided by the quantity of output produced; it shows the variable cost per unit of output.

Increasing Returns to Scale

A situation in production where doubling the inputs results in more than doubling the output, leading to efficiencies and economies of scale.

Decreasing Returns to Scale

A situation in which a firm experiences a less than proportional increase in output despite a proportional increase in all inputs, typically due to inefficiencies.