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02-06-2023
Physics

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4. Worldwide, the most common source of energy used is biomass. What is the biggest difference when
comparing environmental consequences for coal and firewood combustion (as an energy source)?
a) Coal (fossil fuel) produces greenhouse gas waste, and firewood (biomass) does not.
b) Firewood (biomass) is a carbon neutral energy source and coal (fossil fuel) is not.
c) Burning coal (fossil fuel) generates pollutants that are hazardous to human health; firewood does not.
d) Mining coal (fossil fuel) does not damage natural habitat, but harvest of firewood does damage natural
habitat.

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