Which of the Following Positive Feedback Effects Is NOT a Result

question 36

Multiple Choice

Which of the following positive feedback effects is NOT a result of Arctic thawing and glacial melting?

• A)Melting sea ice leads to less reflectivity.
• B)Melting permafrost leads to released methane gas.
• C)Melting of the sea-floor results in release of methane hydrate.
• D)Melting permafrost leads to increased photosynthesis.
• E)Melting glaciers leads to exposed darker rock.

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Definitions:

Vertical Axis

The “up-down” or “north-south” measurement line on a graph or grid.

Marginal Revenue

The financial gain from disposing of one extra unit of a product or service.

Average Revenue

The amount of income generated per unit of sale or the total income divided by the number of units sold.

Purely Competitive Seller

A seller in a market that has many buyers and sellers, with all firms selling identical products and no barriers to entry.