What is the average residence time?

• The average time required for the total stock of a material to be cycled through a system.
• The average time that a human population can stay in an area before environmental conditions force them to move.
• The average time required for an open system to convert to a closed system.
• The average time for a system to run out of energy.


• The average time required for the total stock of a material to be cycled through a system.

Environmental & Atmospheric Sciences

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Photosynthesis involves

A) important reactions within the stems and roots of plants. B) the use of sunlight to produce food sugars and oxygen to drive biological processes. C) a process known as respiration. D) the release of stored carbon dioxide in a process using sunlight.

Environmental & Atmospheric Sciences

Explain why species found in cold habitats tend to be larger than related species found in hot habitats

What will be an ideal response?

Environmental & Atmospheric Sciences

Reclamation refers to the cleansing and repair of degraded sites via physical or chemical means.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

Cold-loving organisms are referred to as ________.

A. poikilophiles B. homeophiles C. thermophiles D. psychrophiles E. endophiles

Environmental & Atmospheric Sciences