| A | B |
|---|
| Power plants that produce electricity emit at least 2/3 of all______, and more than 1/3 of all_________ that pollute the air. | 2/3 of all sulfur dioxide, 1/3 of all nitrogenoxides |
| Industries use what to remove harmful substances from the air? | scrubbers |
| What metal leaks out of the soil due to increse in the acidity of the soil? | aluminum |
| Building and construction industries put what type of pollutants into the air? | particulate matter pollution |
| How does temperature inversion trap pollution? | warm air above cool air prevents it from rising |
| Where is sick-building syndrome common? | warm places where building are sealed tightly to keep out heat |
| What pollutant forms when automobile emissions react with oxygen gas and ultraviolet rays? | ozone |
| The largest producer of primary air pollution in the United States is what? | electricity producing plants |
| Which air pollutants can aggravate bronchial asthma in humans and cause fish to suffocate? | acids formed from nitrogen compounds |
| What two acids are involved in acid percipitation? | sulfuric acid and nitric acid |
| List four primary air pollutants? | carbon monoxide, nitrogen oxide, sulfur dioxide, volatile organic compounds |
| This primary pollutant lowers the oxygen level in tour blood? | carbon monoxide |
| Acid percipitation is mainly a result from the burning of what? | fossil fuels |
| Canada recieves acid percipation from what part of the US? | midwestern and eastern United States |
| Acid precipitatin must have a pH of what? | lower than 5 |
| What is a secondary pollutant? | forms whn a primary pollutant comes into contact with other primary pollutants |
| What causes smog in valleys? | temperature inversions |
| Many public buildings are spending billions of dollars to remove what from buildings? | asbestos |
| What id the best way to reduce light pollution? | direct lightining downward |
| The two major air pollutants that harm lungs are what? | asbestos amd radon |
| Most air pollution is produced by what? | fuel burning |
| What two ways do automobiles contribute to air pollution? | nitrogen oxide frfom exhaust and fumes that escape from the gas tank |
| Radon is produced by the decay of what elemnt? | uranium |
| Sulfur dioxide in the water vapor in the air will do what to the opening of the surfaces of plants? | clog them |
| Acid participation will fall_______of where it originated? | downwind |
| Normal precipitation is slightlt____________, because atmospheric carbon diioxide dissolves in the precipitation and forms________? | acidic, carbonic acid |
| The lower the pH the more_______a substance is. | acidic |
| The higher the pH the more___the substance is? | basic |
| What prevents air pollution in the atmosphere from reaching a dangerous level? | air circulation |
| Cars are required to contain what that prevents air pollution? | catalytic converters |
| Good air quality inside your home requires what? | ventilation |
| Whay is ventilation? | mixing outdoor air with indoor air |
| Particulates can form what that reduce visibility and cause a variety of respiratory problems? | clouds |
| Aquatic animals are adapted to live within a certain___range? | pH |
| What two areas of livelihood are affected by acidification of lakes and streams? | commercial fishing and sport fishing |
| Burning fossil fuels release what two oxides? | sulfur and nitrogen |
| Almost half of the acid participitation that falls in Canada comes from where? | US |
| The Clean Air Act gives who the authority to regulate vehicle emissions in the US? | Enviromental Protection Agency |
| Electrostatic precipitators are used to clean what from gas? | dust particles |
| Scrubbers use what to remove what materials? | water to remove harmful gases |
| Ozone is most likley to affect whom? | children, people who work outside, people who suffer from respiratory diseases and older people |
| Deafness can occur from sounds over what decibel? | 120 decibles |
| Chemical reactions from automobile exhaust, ozone, and sunlight create what? | smog |
