Secondary succession occurs in ecosystems without soil.
answer
FALSE
question
Without the greenhouse effect the Earth would be _______ than it is today.
answer
c.
colder
question
Why was the concern over global cooling replaced with a concern over global warming?
answer
b.
Steady surface temperature increases were noted between the 1970's and 90's.
question
The increased ranges of plant and insect species resulting from climate change has only negative consequences.
answer
F
question
Which of the following is the most likely global climate change?
answer
b.
an increase in the overall temperature of the Earth
question
Habitat change occurs more frequently through natural causes than human activity.
answer
F
question
All scientists agree that global climate change will happen rapidly.
answer
F
question
Which of the following is not a characteristic of a climax community?
answer
d.
experiences no change
question
Succession occurs after ecosystems experience some type of disruptive event.
answer
T
question
Ecosystems have trouble adjusting to short-term changes.
answer
F
question
"In a 2009 study, presented by the National Academy of Science, 97% of climate scientists agree that human activity is causing global warming." Which of the following statements is best supported by this study?
answer
d.
Most climate scientists believe that there is evidence that explains global warming.
question
Which of the following is not true concerning the Pleistocene ice age.
answer
C
Sea levels during the ice age were higher than today.
question
How does climate change lead to an increase in algal blooms?
answer
b.
Increased levels of carbon dioxide, a greenhouse gas, leads to increased phytoplankton growth.
question
Some scientists believe that global warming will bring about extreme weather.
answer
T
question
Which of the following best describes the impact of glaciers upon the surface of the earth?
answer
b.
Glaciers scraped across the surface and altered landscapes and the course of rivers.
question
The early arrival of spring in New Hampshire has no effect on wildlife.
answer
F
question
Which of the following about secondary succession is not true?
answer
b.
It occurs in ecosystems that are already established.
question
Which of the following is not true concerning the interglacial period that began 15,000 years ago?
answer
d.
none of the above
question
How does an early onset of spring through climate change affect plants?
answer
a.
their growing and flowering season starts earlier and is longer
question
Global warming is a theory accepted by a majority of scientists.
answer
T
question
Changes to the global climate could include _______.
answer
d.
all of the above
question
Some scientists believe that global warming will lead to an increase in disease and starvation
answer
T
question
Which of the following is not a way in which humans directly impact algal bloom production?
answer
d.
fishing
question
Fish populations and other aquatic resources are likely to be affected by changes in what aquatic factors?
answer
d.
all of the above
question
Greenhouse gases are best described as ______
answer
d.
gases that trap energy from the sun in Earth's atmosphere
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