Ocean Currents

question 7

Multiple Choice

Ocean currents

• A)are generated by friction between winds and ocean surfaces.
• B)always move clockwise in an ocean basin.
• C)are important in shipping but have little effect on living environments.
• D)are driven by the Earth's core rotating faster than the ocean water.
• E)All of the choices are correct.

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Definitions:

TR > TC

A situation where total revenue (TR) is greater than total costs (TC), indicating a company is making a profit from its operations.

Short Run

A period in which at least one of a firm's inputs is fixed, limiting its capacity to adjust its output levels.

Long Run

A period of time in which all factors of production and costs are variable, allowing firms to adjust all inputs.

Marginal Cost

The cost of producing one additional unit of a good or service.