COMPLETE SOLUTIONS34
Between 1960 and 1970, world oil consumption approximately doubled. Which of the following
explanations is consistent with this increase? - ANSWERS-the number of cars on the road
increased
Which of the following practices is consistent with the production of organic crops according to
the United States Department of Agriculture? - ANSWERS-using chemicals known as
pheromones to disrupt insect mating cycles
Which of the following best describes the process known as "mountaintop removal'? -
ANSWERS-The use of heavy equipment to move overburden downhill during the strip mining of
coal
Vegetarianism is often cited as a partial solution to the growing problem of deforestation and
other types of habitat destruction as the human population continues to grow. The reason for
this is... - ANSWERS-more people can be fed using less agricultural land because vegetarians eat
at a lower trophic level
Although the use of DDT was banned in the United States in 1972, a test of the body tissue of an
average United States resident today would most likely reveal the presence of DDT because... -
ANSWERS-other countries that export produce to the
United States still use DDT
Which of the following is part of a positive feedback mechanism associated with global climate
change? - ANSWERS-Melting of Arctic sea ice
,The pH at which 50% of the Daphnia survive after 2 hours of exposure can be predicted from
the data. This pH is closest to... - ANSWERS-4.5
How would including a control group be useful in this experiment? - ANSWERS-it would provide
a reference for the effects of random environmental factors
On the basis of the data, the best prediction of the pH of the water in which Daphnia normally
are found in the wild is... - ANSWERS-7
Which method reduces the volume of waste but could release toxic emissions into the
atmosphere? - ANSWERS-Incineration
Which method is used most frequently in the United States today? - ANSWERS-Sanitary landfill
Which method introduces microorganisms to break down hazardous organic compounds? -
ANSWERS-Biological treatment
Which method would be best suited for neutralizing the acidic components of waste? -
ANSWERS-Chemical treatment
The location where the greatest number of people would be directly affected by a rise in ocean
level. - ANSWERS-East of the Indian subcontinent
The location of the greatest remaining natural biodiversity. - ANSWERS-Amazon rainforest
(South America)
The location where desertification is occurring most rapidly. - ANSWERS-North Africa
,The location where the site of the human population is the most stable. - ANSWERS-United
States
Exemplified by ticks feeding on a deer. - ANSWERS-parasitism
Exemplified by starlings displacing bluebirds from nesting sites. - ANSWERS-competition
Exemplified by bees consuming nectar and carrying pollen from one flower to another. -
ANSWERS-mutualism
Exemplified by moss growing on a tree trunk in a forest. - ANSWERS-commensalism
Matter in motion has energy. - ANSWERS-kinetic energy
Energy is transferred from one object to another as the result of a temperature difference. -
ANSWERS-heat flow
An energy transformation occurs and results in increased disorder. - ANSWERS-second law of
thermodynamics
The amount of energy in an isolated system stays constant. - ANSWERS-First law of
thermodynamics
The source that produces long-lived hazardous wastes. - ANSWERS-nuclear fission
The source that is converted directly into electrical energy by photovoltaic cells. - ANSWERS-
sunlight
, The source whose use is a direct cause of deforestation. - ANSWERS-biomass
The source that is not renewable. - ANSWERS-nuclear fission
Measured on the pH scale. - ANSWERS-acidity
Caused by suspended particulates. - ANSWERS-turbidity
Decreased by the breakdown of organic waste. - ANSWERS-dissolved oxygen
Measured by the amount of Ca and Mg. - ANSWERS-hardness
It is an important precursor to acid rain. - ANSWERS-sulfur dioxide
Has a stronger affinity for hemoglobin than oxygen has. - ANSWERS-carbon monoxide
Has been implicated as the cause of as much as 15% of lung cancer cases. - ANSWERS-radon
It is a flammable gas produced by landfills. - ANSWERS-methane
Ozone in the stratosphere is important to organisms at Earth's surface because ozone molecules
are very strong absorbers of... - ANSWERS-ultraviolet rays
Reasons that human populations historically have settled in floodplains include which of the
following?
I. The soil in floodplains is usually fertile