During hail formation, rain drops circulate repeatedly above and below the freezing level in clouds, adding layers of ice until they fall under the force of gravity
Indicate whether the statement is true or false
TRUE
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Which substance is considered a primary pollutant?
A) sulfuric acid B) carbonic acid C) particulate matter D) nitric acid
Ethnic religions generally have in common
A) some historical person who founded the religion. B) unknown or unclear origins. C) multiple deities. D) a lack of any holy books. E) precise places of origin.
A tank filled with manure, water and unused crop plant residues but which minimizes oxygen content could be used to
A) produce biogas. B) produce biogas if the oxygen levels were adjusted to very high concentrations. C) burn unused parts of crop plants to generate heat for homes. D) collect and store carbon dioxide in underground wells.
If you are highly asthmatic, then having high levels of industrial air pollutants waft over your house every day
A. is a voluntary exchange. B. is positively a voluntary exchange. C. would be a negative externality. D. would be an external voluntary exchange.