The Temperature on the Celsius Scale Where All Molecular Activity

question 29

Multiple Choice

The temperature on the Celsius scale where all molecular activity stops is ____.

• A) -273°C
• B) -293°C
• C) -460°C
• D) -459.6°C

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Definitions:

Biogeochemical Cycles

The cycles that involve the movement and transformation of chemicals and elements through biological organisms, geological processes, and chemical processes within ecosystems.

Climate

The long-term pattern of weather in a particular area, including temperature, humidity, wind, and rainfall.

Carbon Cycle

A natural process through which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.

Primary Productivity

The amount of light energy converted to organic compounds by autotrophs in an ecosystem over a given period. Compare with secondary productivity. See gross primary productivity (GPP) and net primary productivity (NPP).