Landfill waste results in air pollution as a. garbage decomposes and releases methane b. radon trapped in garbage is released c. paint and hairspray cans break down d. vandals set fire to flammable waste

a. garbage decomposes and releases methane

A landfill is a site where the waste materials generated by the human activities are disposed off. It is the oldest form of waste treatment. The methane gas is produced in these landfills as a result if the anaerobic digestion of organic matter present in the biological waste by the microbes. This methane gas is responsible for generating foul smell around the landfill and also it is a potent air pollutant responsible for global warming.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

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