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Correct Answer: D) Turn off the lights or ac.
Correct Answer: D) All of the above.
Correct Answer: C) Coal.
Correct Answer: C) Temperature inversion.
Correct Answer: B) 25 or less.
Correct Answer: C) Nitrogen Dioxide, Sunlight, and VOCS.
Correct Answer: A) Absorption of incoming solar energy.
Correct Answer: C) Exosphere.
Correct Answer: B) Industrial smokestacks and coal-burning power plants.
Correct Answer: A) Stratosphere.
Correct Answer: C) Mop.
Correct Answer: B) Oxygen | Chlorine.
Correct Answer: C) Pollution.
Correct Answer: C) Emissions.
Correct Answer: A) Sulphur dioxide.
Correct Answer: A) El Nino Southern Oscillation.
Correct Answer: B) Cooking.
Correct Answer: B) Stratosphere.
Correct Answer: C) Industry, transportation, and energy production.
Correct Answer: B) They cause serious damage to the central nervous system and can ultimately lead to death.
Correct Answer: C) Secondary air pollutants.
Correct Answer: A) Bad air.
Correct Answer: C) CO$_{2}$.
Correct Answer: A) Temperature Inversion.