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WorksheetsEnvironmental Science Ch. 6-7
Total questions: 20
Worksheet time: 10mins
Temperate grasslands are characterized by cold winters and hot and dry summers.
True
False
Greenhouse gases trap heat and raise the atmosphere’s average temperature.
True
False
A healthy lake cannot have too many nutrients.
True
False
Wetlands are typically covered with water for only part of the year.
True
False
Which example best illustrates the concept of climate?
The spring has been unusually wet for the Midwest.
Averaged over the last 30 years, the high temperature for June in an area is 82°F.
A drought this summer has severely impacted crops.
Yesterday, it rained in Atlanta, Georgia.
The Equator is warmer than the Poles because _____.
the Equator is closer to the sun
atmospheric circulation moves warm air toward the Equator
sunlight hits the Equator directly, but hits the Poles at a low angle
geothermal energy from Earth’s interior is higher at the Equator
About _____ of Earth’s tropical rain forests have been destroyed by agriculture and _____.
half; urban development
nine-tenths; urban development
three-fourths; pollution
one-third; pollution
Most of the world’s forests are located in _____ regions.
coastal
river valley
urban
mountain
Ocean, pond, lakes, and river systems are examples of _____ ecosystems.
freshwater
wetland
saltwater
aquatic
The burning of fossil fuels _____.
prevents ocean acidification because it puts extra carbon dioxide in the atmosphere
contributes to ocean acidification because it puts extra carbon dioxide in the atmosphere
prevents ocean acidification because it stabilizes the amount of carbon dioxide in the atmosphere
contributes to ocean acidification because it stabilizes the amount of carbon dioxide in the
atmosphere
Scientific evidence indicates that extinction rates in the past few centuries have risen mainly due to natural causes.
True
False
Projected extinction rates may be underestimated due to ongoing impacts of a growing human population and environmental degradation.
True
False
Illegal hunting of exotic animals is an example of overexploitation.
True
False
It has not been possible to get countries to agree to participate in any international treaties that protect threatened and endangered species.
True
False
The U.S. Endangered Species Act (ESA) is likely the most successful environmental law of any country.
True
False
A species is considered endangered if it _____.
lives in an area that is legally protected from harmful human activities
lives in an area that has been impacted by many invasive species
has so few individual survivors that the species could soon become extinct
has been identified as part of the Convention on Biological Diversity
One prediction regarding a possible sixth mass extinction is that _____.
it will wipe out up to half of Earth’s plant and animal species
it will require much less recovery time than previous mass extinctions
biodiversity hotspots will be the areas that are least affected
it should be offset by a slowdown in human population growth
Rapid human population growth since the Industrial Revolution has been accompanied by _____.
better control of the spread of invasive species
decreased resource use per person
a shrinking ecological footprint
an increase in wild species extinctions
Over 40% of endangered species in the United States are at risk due to impacts from _____.
invasive species
pollution
habitat fragmentation
climate change
One problem for captive breeding programs is that _____.
captive-bred animals cannot be reintroduced to the wild
they must typically contain populations of at least 100 animals
they cannot involve use of endangered animals
there is a lack of public support for them
