Chapter 14: Atmosphere
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Smog
Q.1
Which gas causes yellow color in photochemical smog?
Q.2 The depletion of the reaction of O3 with:
Q.3
Wonsidered tilate sta tar sile is considered the most human health?
Q.4
Which of the following is a natural factor that can improve air quality?
Sources and Types of Air Pollutants
Q.5
What is a common human activity that led to increased level of carbon monoxide in the atmosphere?
Q.6
Chlorofluorocarbons (CFCs) have been primarily used in:
Q.7
What are the primary processes that removes carbon dioxide from the atmosphere?
Q.8
An AQI value between 51 and 100 typically indicates which level of air quality?
Oxides of Nitrogen
Q.10
In the presence of sunlight and nitrogen oxides (NOx), VOCs can contribute to the formation of:
Q.11
Primary pollutants like nitrogen oxides (NOx) and volatile organic compounds (VOCs) react in the presence of sunlight to form a key component of photochemical smog, which is a:
Q.12
Which layer of the atmosphere contains most of the Earth's whether phenomena?
Q.13
A key component that distinguishes photochemical smog from industrial smog is the presence of:
Q.14 Percentage of oxygen in atmosphere:
Q.15
Whether events occur in which layer of atmosphere:
Q.16
Temperature increases with altitude in which of the following layers?
Q.17
Which of the following is a trace gas but important for greenhouse effect?
Q.18
Water vapor in the atmosphere is important because it:
Q.19 Primary pollutants are:
Q.20
Which of the following limits emission of particulate matter in air?
Q.21
Which harmful considered to be most particulate matter?
Q.22
Which of the following is a heavy metal?
Q.23 Dichlorobiphenyl (DDT) is used as:
Q.24
How forests contribute to lowering the temperature of earth?
Q.25
Which is point source of pollution?
Q.26 Effects of deforestation include:
Q.27
Which of the following is carcinogenic?
Q.28 Ash from volcanic eruption is:
Q.29
Which of the following is a secondary pollutant?
Q.30
Vehicular exhaust mainly contributes to which pollutants?
Q.31
Which is considered a natural source of air pollution?
Q.32 Carbon monoxide (CO) is dangerous because it:
Q.33 Major human source of CO2 increase in atmosphere is:
Q.34
Which statement about carbon dioxide is correct?
Q.35
Incomplete combustion of carbon- based fuels tends to form:
Q.36 Major source atmosphere is:
Q.37
NOz in the atmosphere contributes to: rain and formation
Q.38
Which reaction is important in forming nitric acid (HNO3) in the atmosphere?
Q.39
How do NOx emissions affect human health primarily?
Q.40
The "good" ozone that protects life from UV radiation is located in the:
Q.41
Which of the following causes ozone depletion?
Q.42
Low altitude ozone is toxic above which concentration:
Q.43
The chemical specie responsible for ozone depletion by chlorofluorocarbons is:
Q.44
Ground-level ozone (bad ozone) is mainly formed from:
Q.45
Which substance was primarily | 51. Which of the following is not a green- responsible for stratospheric ozone depletion?
Q.46
Exposure to high levels of ground- level ozone causes:
Q.47
Which statement is true about stratospheric ozone and temperature?
Q.48
Which gas is the most important long- lived anthropogenic greenhouse gas by concentration?
Q.49
Which of the following has the highest global warming potential per molecule but is present in much smaller quantities?
Q.50
Which is NOT considered a greenhouse gas?
Q.52 Greenhouse warming by:
Q.53 Acid atmospheric deposition of:
Acid Rain
Q.54
Which of the following is an environmental effect of acid rain?
Q.55
How does acid rain damage stone monuments made of limestone?
Q.56
Which smog type is associated with cold, stagnant air and coal/soot combustion (classic London smog)?
Q.57
Photochemical smog is characterized by high daytime concentrations of:
Q.58
For an air quality index termed hazardous the colour is:
Q.59
Which of the following would NOT improve a city's AQI in the short term?
Q.60
Which of the following lowers the air quality?
Q.61
Which range of AQI is considered hazardous?
Q.62
Catalyst used in selective catalytic converter include:
Q.63
Which of the following is used in diesel engines to restrict emission of harmful gases?