Answer:
B.Allergies .many people are there who are allergic to things.
Semipermeable means something can be penetrated by a few things. that being said choices A and B can be eliminated.
Choice D would negate semi as it says all polar molecules, leaving choice C as the best answer
Can help prevent heart attacks
Explanation:
Incinerators are not helpful in reducing pollution as they produce a lot of ash and smoke so it increases the air pollution by burning of waste.
Solar and wind energy are the clean source of energies replacing the fuels. Catalytic converters reduce the air pollution from the exhaust fumes of vehicles.
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Answer:
A. (exponential) population
