Which of the Following Has Been Sited as a Positive

question 100

Multiple Choice

Which of the following has been sited as a positive feedback loop involving the thawing of permafrost?

• A) Thawing of permafrost will increase albedo, leading to more warming.
• B) Thawing of permafrost will release vast amounts of carbon to the atmosphere, accelerating warming.
• C) Thawing of permafrost will contribute to sea level rise, which will further reduce overall global albedo values.
• D) Thawing of permafrost will inhibit frost wedging action on large boulders, altering absorption ability.

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Definitions:

Experimental Material

The group or class of objects or subjects that is being studied in an experiment.

Independent Variable

The variable in an experiment that is manipulated or changed by the researcher to observe its effects on the dependent variable.

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The Food and Drug Administration, a federal agency of the United States responsible for protecting and promoting public health through the control and supervision of food safety, tobacco products, dietary supplements, prescription and over-the-counter pharmaceutical drugs, vaccines, biopharmaceuticals, medical devices, and veterinary products.

Predictions

Statements about what will happen in the future based on current information or trends.