EGR 102 CH 7

photochemical smog has its name because

a combination of NO, HC, and sunlight leads to the formation of O3

thermal inversion refers to

a condition in which, as a result of a large amount of emissions from cars and smoke stacks, temp increases rather than decreases with height

radon is

a naturally occurring radioactive gas derived from the decay of uranium-238

an adverse health effect after material has been ingested or absorbed into the body is

a systemic effect

the US was the only country that refused to ratify the Kyoto Treaty on the grounds that a) it gave unfair advantages to india and china b) it adversely impacted it economy c) it forced companies to move their manufacturing facilities overseas d) the cost of cleanup would be borne solely by the industrialized countries e) all of the above

all of the above

what factors determine global temp? a) concentration of greenhouse gases int he atmosphere b) earth's albedo c) seasonal variation d) solar intensity e) all of the above

all of the above

which of the following does not directly impact global warming? a) non-methane volatile organic compounds b) liquid droplets c) carbon monoxides d) fog e) all of the above

all of the above

which of the following statements is correct? a) the measure of the acidity of a solution is its pH val. b) the pH scale ranges between 0 and 14 c) pure water has a pH of 7 and is considered to be neutral d) acids have pH vals lower than 7, and alkalines have pH vals higher than 7 e) all of the above

all of the above

ozone has the chemical formula _____, is generally _____ in the lower atmosphere and is ______ in the stratosphere.

O3, detrimental, beneficial

the reason skin cancer can be caused by an increase in UV radiation, but not in visible light, at the Earth's surface is

UV has more energy than visible light and can breakup (ionize) biological molecules more readily than light

the primary source of man-made SO2 is _____; it harms people, animals, vegetation, and material through the formation of ______.

coal burning, sulfuric acid note: coal burning is right, but not sure about sulfuric acid

which chemicals are most responsible for the breakdown of ozone molecules?

compounds containing chlorine or bromine

the most environmentally harmful emissions from automobiles powered by gasoline engines are

hydrocarbon, CO, and NOx ??????

A leading cause of global warming is

increased CO2 in the atmosphere as a result of human activity

in the past century the avg global temp has

increased by about 1.4-1.6°C

sunlight absorbed by the earth's surface is reemitted in the form of

infrared radiation

carbon monoxide is dangerous to human health because

it causes suffocation, since it can react with hemoglobin in the blood

ozone depletion is a result of the

reaction between chlorine and bromine compounds with ozone

in which layer of the atmosphere is most of the earth's ozone concentrated

stratosphere

the increase observed in atmospheric levels of CO2 over the past 100 yrs is most likely due to

the burning of fossil fuels

the greenhouse effect would not occur if

the earth had no atmosphere

the "greenhouse effect" is mainly due to a) the opacity of ozone and CO2 to infrared radiation b) the transparency of CO2 and H2O to infrared radiation c) the opacity of CO2 and H2O to infrared radiation d) the transparency of ozone to UV radiation e) all of the above

the opacity of CO2 and H2O to infrared radiation??????

which of the following layers of the atmosphere is highest above the surface of the earth?

thermosphere

in which layer of the atmosphere does weather occur?

troposphere

the 1987 UN's Montreal Protocol

was designed to gradually phase out the production of CFCs and other ozone depleting compounds

according to the IPCC report, as a consequence of global warming, by the end of this century

we may experience a strong comeback by tropical diseases such as malaria

on a per-gram basis, which of these gases is most effective in causing global warming? a) CO2 b) methane c) ammonia d) nitric oxides e) CFCs

CFCs

the gas contributing the most to global warming at present is

CO2 ???

Which of the following is NOT considered a greenhouse gas? a) nitrogen b) methane c) nitric oxide d) chlorofluorocarbon e) water vapor

nitrogen

what is the primary constituent of the earth's atmosphere?

nitrogen

it is feared that, with the use of many SSts (supersonic transports) and the release of Freon, the ____ in the upper atmosphere with decrese, which, in turn, will cause an increase in the level of ____ reaching the surface of the earth.

ozone, UV radiation?

the primary source(s) of SO2 in the atmosphere of a large city is/are

power plants and other stationary sources