If Earth Warmed Up,and More Snow Fell Because of More

question 17

Multiple Choice

If Earth warmed up,and more snow fell because of more water vapor in the atmosphere,and that snow then reduced Earth's temperature,which increased snow cover,then the initial increase in snow fall would be ______ feedback,while the continued increase in snow fall would be _____ feedback.

• A)positive;positive
• B)positive;negative
• C)negative;positive
• D)negative;negative
• E)open;closed

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Definitions:

Cell Metabolism

The intricate set of life-sustaining chemical transformations within the cells of living organisms, involving energy production and the synthesis of necessary compounds.

Tubular Secretion

The process in the nephron where substances are added from the blood into the filtrate for elimination from the body.

Pressure Filtration

A process where solid particles are separated from liquids through the application of pressure, forcing the liquid through a semipermeable barrier.

Distal Convoluted Tubules

A portion of the kidney nephron that lies between the loop of Henle and the collecting ducts, involved in the reabsorption of water, sodium, and glucose.