How Does Hoar Form

question 71

Multiple Choice

How does hoar form?

• A) when the temperature hovers around the freezing point, snow that melts during the day refreezes at night
• B) when the air is dry and cold, ice crystals grow on the surface of the snowpack
• C) feather-shaped snowflakes bond together when they hit the surface of the snowpack
• D) wind carries away unconsolidated snow, leaving behind small grooves and needle shaped ice crystals
• E) when the air is wet and cold, water vapour transforms directly into ice

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Definitions:

Opportunity Cost

The cost of forgoing the next best alternative when making a decision or choosing to consume or produce one good or service over another.

Marginal Product

Marginal Product is the additional output resulting from a one-unit increase in the quantity of a particular input, holding all other inputs constant.

Labor

Refers to the human effort, both physical and mental, used in the production of goods and services.

Output

The amount of goods or services produced by a company, industry, or economy within a certain period.