Identify items 1-2 as one of the following. electric power plants and motor vehi
ID: 492624 • Letter: I
Question
Identify items 1-2 as one of the following. electric power plants and motor vehicles electric power plants and industry and motor vehicles smelters and motor vehicles the largest sources of NOx pollution are Answer: __ the largest sources of particulate pollutants are Answer: __ Identify items 1-2 as one of the following. improve the taste kill bacteria remove suspended matter remove trihalomethanes Public water supplies are aerated to Answer __ Chlorine is added to public water supplies to Answer: __ For questions 3-36, please circle the correct answer the approximate percentage of nitrogen in atmosphere is 18% 28% 48% 78% the three most abundant gases in dry air are nitrogen, oxygen, and argon carbon dioxide hydrogen ozone Lightning can convert atmospheric N_2 to nitroglycerin ammonia nitrogen oxides proteins Conversion of atmospheric N_2 to biologically useful forms is called nitrogen addition fixation reduction substitution Which of the following processes removes carbon dioxide from the atmosphere? photosynthesis respiration temperature inversions volcanic eruptions Which of the following processes consumes oxygen? breakdown of ozone corrosion of metals Haber-Bosch process photosynthesis Carbon monoxide is formed as a product of animal respiration burning coal but not natural gas combustion of fossil fuels with excess O_2 partial combustion of coal the pollutant usually described by size rather than composition is acid rain CFCs particulates photochemical Which of the following is not a problem caused by NOx emissions? addiction formation of nitric acid, leading to acid rain formation of smog eye irritation Many volatile organic compounds (VOCs) have molecules composed of C and H C and N N and H N and O Volatile organic compounds (VOCs) come mainly from automobiles dry cleaning plants electric power plants natural sources Nitrogen oxides and hydrocarbons combine in the presence of sunlight to cause acid rain global warming an ozone hole photochemical smogExplanation / Answer
1) 1. The largest sources of NOx pollution are:
(C) Industry and motor vehicles
Combustion of fuels in industry produces the highest amount of NOx pollution.
2. The largest sources of particulate pollutants are:
(B) electric power plants and industry
2) 1. Public water supplies are aerated to
(C) remove suspended matter
2. Chlorine is added to public water supplies to
(B) kill bacteria
3. (D) nitrogen
4. (A) argon – atmosphere contains about 0.9% Ar gas.
5. (C) nitrogen oxides
Infact lightning contributes majorly to the concentration of natural NOx.
6. (B) fixation
Atmospheric N2 is converted to nitrates mainly by this process.
7. (A) Photosynthesis
Photosynthesis converts CO2 of atmosphere into energy by using sunlight and chlorophyll.
8. (B) Corrosion of metals
Corrosion of metals is actually oxidation of metals in presence of atmospheric O2 to metal oxides.
9. (D) partial combustion of coal
Carbon has intermediate oxidation number in CO and is produced by oxidation of coal and carbon-containing fuels in limited supply of air.
10. (C) Particulates
Particulates are described by their size. Particulate matter is formed from a combination of mist, spray, dust and VOC matter. The smaller the size of particulate matter, the more severe is the effect.
11. (A) Addiction
All the other are effects of NOx pollution.
12. (A) C and H
Carbon and hydrogen are the major components of almost all organic compounds and VOCs are mainly high molecular weight hydrocarbons of C and H.
13. (D) natural sources
Natural sources produce almost 10 times more VOCs than man-made sources.
14. (D) Photochemical smog
Nitrogen oxides and organic compounds combine to produce photochemical smog.