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Random Populations RelationshipsAtmosphere/
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Scientific Inv.Energy
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Answer
What is the approximate age of the earth?
4.5 billion years old
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Answer
Glaciers helped form the Earth’s surface by erosion as seen in
Cape Cod
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In designing a good experiment, a scientist attempts to isolate one
Question
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Environmental Science is considered to be an integrated science because
It involves many sciences
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The extinction of a species means that
its populations no longer exist
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New York’s Finger Lakes, which were formed by the same process as were the Great Lakes, were formed by:
the movement of glaciers
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All of the following are indigestible material for an owl
except
Muscle
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El Nino occurs every
4-7 years
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To measure the acidity of a solution you would perform a __________ test.
pH
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To measure the clarity of pond water you would perform a __________ test.
turbidity
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In a balanced ecosystem, the carrying capacity for a given species should be
stable
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All of the following are herbivores except
bear
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When scientists say that the balance in the ecosystem is dynamic they mean that
change is constant
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In which place would you probably find the most organisms?
a swamp
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Which organism is most likely to be found on a newly discovered island?
Parrot
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Primary succession can occur in which of the following habitats
a cooled lava field
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In the Antarctic, as baleen whale numbers increase you would expect seals to:
decrease in numbers
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Two species of clover were planted in the same patch of garden. In time, one species
disappeared from the patch. This is probably the result of:
competitive exclusion
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Through aquatic succession, a clear lake may eventually become:
a meadow
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Mass killings of predators may result in
overpopulation of prey
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What effect does a keystone predator have on its habitat?
it increases niche diversity
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Legumes enrich soil by adding nitrogen to it through their
root nodules
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From where do autotrophs get the energy that produces their food?
the sun
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Interactions in the environment are usually
Complex
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Lichens are important to an ecosystem because they
help form soil
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An organism that feeds on the body fluids or tissues of another organism but does not kill it is called a:
Parasite
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An increase in herbivore populations in an ecosystem will soon lead to
increasing predator populations
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A stable ecosystem includes
a wide variety of organisms
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Competition occurs between species when
they try to share the same niche
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Condors are related to vultures and feed on carion, or dead animals. Condors’ role in the food web is as:
scavengers
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What is the most important requirement for all living things?
Water
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In which part of the atmosphere do you live?
Troposphere
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Water exists on other planets in the solar system. Yet, life exists on Earth because water exists as a
vapor
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A gas that contributes to the greenhouse effect is
carbon dioxide
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Answer
Temperatures in the thermosphere can reach
2000 degrees C
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Ultraviolet radiation is blocked from reaching Earth’s surface by what substance found in the atmosphere?
ozone
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Nitrogen makes up what percent of air composition on earth?
78%
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Natural springs form on Earth’s surface with water that originated from
Aquifers
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A pump does not need to be used to raise groundwater to the surface in areas where artesian wells are located because the water in artesian wells
is under pressure
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People use rivers in all of the following ways except
as a source of salt
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In one day, a zebra eats 10kg of grass. A lion kills and eats the zebra. About how much of the energy contained in this grass is usable by the lion?
1 kg
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When new information conflicts with a hypothesis, the hypothesis
must change
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A scientific explanation for a natural occurrence is
a hypothesis
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In a controlled experiment
the scientist knows the outcome
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Science does not attempt to answer questions that deal with
nitrogen
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Though matter in an ecosystem is recycled, energy is
Lost
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A hypothesis must be rejected when
it is not supported by data
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“Ozone depletion is caused by CFCs” is an example of a scientific
hypothesis
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Energy moves through the ecosystem in the form of
biomass
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To be a tertiary consumer, you would have to eat
Deer
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