Air Pollution Crossword Puzzle

QUESTIONS LIST: smog : air pollution that forms when nox & vocs react with sunlight, acid rain : forms when sulfur & nitrogen oxides mix with water in the air, particulates : tiny solid particles smaller than 10 micrometers , ozone : a secondary pollutant that is the main component of smog, catalytic : _ converters in cars reduce co, hydrocarbons, & nox in exhaust, scrubbers : devices in coal-burning power plants to reduce so2 emissions, asbestos : fibers found in old building materials, can cause lung cancer if inhaled, radon : indoor air pollutant that seeps into basements from bedrock and soil, methane : a greenhouse gas that traps 20x as much heat as co2, mercury : undergoes biomagnification in food webs; causes brain damage, fumes : vapors with caustic odors released by volatile organic compounds (vocs), limestone : neutralizes acid rain when present in soil, electrostatic : _ precipitators remove particulates from smokestacks, monoxide : carbon _ is an odorless invisible gas that can cause death by suffocation, primary : _ pollutants are released directly into the air from any source, nutrients : leached from the soil by acid rain, stunting plant growth, inversion : when warm air traps a layer of colder air & pollutants near the ground, stratosphere : part of the atmosphere where the ozone layer is located, ten : a ph value of 3 is _ times more acidic than a ph value of 4