How would a shift in land use from forest to agriculture affect atmospheric carbon dioxide?

(a) it would have no effect.
(b) it would result in a large release of co2.
(c) it would result in a decrease in release of co2.
(d) neither forests nor crops contribute significantly to atmospheric carbon dioxide.

B) It would result in a large release of CO2

Explanation:

This simply refers to deforestation.Because the forest will be destroyed in order to farm the land

Green plants fix C02  by reducing it with  water during photosynthesis;therefore they continuously reduced  and stabilized the C02 concentration in the atmosphere.  

Atmospheric C02 absorbs excessive heat radiated from the earth surface, Thus deforestation ,increases C02 levels because green plants are destroyed, photosynthesis prevented,  therefore  increasing  the earth's  temperature   leading  to global warming.

the energy generated by an individual's metabolism is calculated in met (metabolic equivalent of task). the met is the ratio of the work metabolic rate to the resting metabolic rate. one met is illustrated as 1 kcal per kilogram per hour, and is probably equal to the energy cost of sitting quietly.

1 met is equal to 1.162 watt per kg

1 kg is equal to 1000 grams

as the person weighs 80000 gm, that is, 80 kg.

therefore, 80*1.162 = 92.96

thus, the person expends 92.96 watts of power while at rest.