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EVR 1001 Mid Term Review Questions With Complete Solutions
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EVR 1001 Mid Term Review Questions With Complete Solutions
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EVR 1001 Mid Term Review Questions With CompleteSolutions
According to island biogeography, name one factor that could
lead to greater increase within a preserve? Correct Answer
Bigger space supports more species, connected populations (no
diversity, consistent population, better transportation), maintain
the landscape, manage people, good location without a lot of
noise and pollution (buffer), preserves near each other
- Lecture 10 pg 45
All of the following correctly describe fossil fuels except:
a) it is a form of stored solar energy
b) it created from incomplete biological decomposition of dead
organic matter
c) it comprises long-term energy reserves
d) it is a renewable energy resource
e) it is organic material, dead and buried Correct Answer d) it
is a renewable resource
- fossil fuels are theoretically considered non-renewable as it
takes millions of years for the Earth to produce
An explanation for a natural phenomenon that relates and
explains many observations and is supported by a great deal of
evidence is called a:
A.) hypothesis
B.) controlled experiment
C.) technology
D.) theory
E.) fact Correct Answer D.) Theory
,-theory may mean a guess, a hypothesis, a prediction, a notion, a
belief.
- highest level of certainty for any scientific knowledge
Biologically speaking, where a species lives is its ___ , but what
it does for a living is its ___ .
a) ecological niche / habitat
b) habitat / ecological niche
c) residence / evolution
d) evolution / diversity Correct Answer b) habitat / ecological
niche
- functional diversity: the total amount of roles that are filled
within an environment. Ecosystems can have many different
niches - how many niches are available and how many have
been filled?
Blackbody radiation theory suggests that if any planet heats up it
will emit more energy from itself and thus decreasing future heat
increase, is this:
a) A negative feedback
b) A positive feedback
c) Not a feedback Correct Answer a) A negative feedback
- blackbody radiation is a fundamental negative feedback on the
temperature of all planets in the solar system
Describe different types of age structures observed in countries
around the world and how these age structures impact current
and future social and economic conditions in these countries?
Correct Answer - Age structure is a chart which displays the
number of people by age group within a certain population
- There are four different kinds of age structures:
, 1.) Pyramid: high population of the younger and low population
of the elder (high death rate; short avg lifetime); Social impacts:
high dependency, infrastructure costs
2.) Inverted Pyramid: high elderly, low youth (declining
growth); Social impacts: high medical cost
3.) Column: birth rate and death rate are low, along with a small
change in population size
4.) Column with bulge: event in the past caused a high birth or
death rate for some age groups (i.e. baby boom in US)
Explain how oil is recovered from tar sands? Correct Answer
The oil is extracted from the sands from extreme washing with
hot water
Explain what positive and negative feedbacks are and how they
affect the stability of a system. Please give an example of a
positive and negative feedback dealing with water vapor in the
Earth's climate system. Correct Answer - Positive feedback:
amplifies or destabilizes a situation
- Negative feedback: stabilizes a situation
ex.)
Positive feedback: Ocean absorption of CO2
- warm water holds less CO2 than cold water, so when the
oceans warm up they take less CO2 from the atmosphere leading
to increased warming
Negative feedback: Ocean absorption of CO2
- The ocean and atmosphere are at equilibrium with CO2 but
adding CO2 to the atmosphere disturbs the equilibrium causing
CO2 to enter the ocean. This then decreases the amount of CO2
in the atmosphere
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