The Burden of Human Made Aerosol Sulfate in the Earth's $B ( x , n ) = \frac { x n } { A }$

question 5

Multiple Choice

The burden of human made aerosol sulfate in the earth's atmosphere, in grams per square meter, is $B ( x , n ) = \frac { x n } { A }$
Where x is the total weight of aerosol sulfate emitted into the atmosphere per year and n is the number of years it remains in the atmosphere. A is the surface area of the earth, approximately $5 \times 10 ^ { 14 }$ square meters. Calculate the burden given the 1995 estimated values of $x = 2.8 \times 10 ^ { 14 }$ grams per year and $n = 20$ days. Enter the number of grams per square meter as a number without the units. Round to three decimal places.

• A)0.061 grams per square meter
• B) 0.098 grams per square meter
• C) 0.031 grams per square meter
• D) 0.767 grams per square meter
• E) 11.200 grams per square meter

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Definitions:

Neutrophils

A type of white blood cell that helps heal damaged tissues and resolve infections.

Monocytes

A type of white blood cell that plays a key role in the immune system by fighting infections and removing dead or damaged cells.

Histamine

A biogenic amine involved in local immune responses, regulating physiological function in the gut and acting as a neurotransmitter.

Leukotrienes

Lipid compounds derived from arachidonic acid that mediate inflammation, allergic reactions, and other immune responses.