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26 questions
Nitrogen fixation cannot occur through this method:
lightning
fertilizer
nitrifying bacteria
denitrifying bacteria
The largest reservoir for phosphorous is the:
atmosphere
sedimentary rocks
animals
plants
A dead tree decomposing would:
add carbon to the atmosphere
remove carbon from the atmosphere
A factory burning fossil fuels would:
add carbon to the atmosphere
remove carbon from the atmosphere
The rate of carbon dioxide enters the atmosphere because of human activity is much slower than the rate that it is removed.
True
False
All ozone is the result of air pollution and its harmful to human health and ecosystem functions.
True
False
Ocean ecosystems act as a carbon reservoir removing carbon dioxide, which is dissolved in the seawater. Which biological process would then utilize this dissolved carbon dioxide?
photosynthesis by oceanic fish
photosynthesis by phytoplankton
aerobic respiration by marine mammals
anaerobic respiration by marine protozoa
Water is lost to the abiotic parts of the biosphere from the biotic parts by the process of:
infiltration
precipitation
transpiration
photosynthesis
Carbon dioxide in the atmosphere enters the biotic parts of the biosphere through the process of:
photosynthesis
burning of forests
Combustion of fossil fuels
all of these
Water is stored in reservoirs, sometimes for a long time and sometimes for a short time. Which of the following reservoirs is considered short-term storage?
glaciers
oceans
river
cloud
In the oxygen cycle, oxygen is released from the biotic component to the abiotic component by which process?
photosynthesis
cellular respiration
burning of fossil fuels
nitrogen fixation
The Earth is a closed system in terms of both matter and energy.
True
False
Excess fertilizers containing nitrogen and phosphorous cause major eutrophication to waterways
True
False
Lightning converts N2 gas in the atmosphere into nitrates and nitrites.
True
False
The largest reservoir for phosphorous is the:
atmosphere
animals
sedimentary rocks
plants
Adding manure to soil will:
help to lower nitrogen amounts in the soil
increases the amount of nitrogen in the soil
Adding denitrifying bacteria to soil will:
help lower the nitrogen amounts in the soil.
increase the nitrogen amounts in the soil.
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A bush undergoing photosynthesis will:
add carbon to the atmosphere
remove carbon from the atmosphere
A caterpillar undergoing respiration will:
add carbon to the atmosphere
remove carbon from the atmosphere
Most producers get energy from the sun using the process of
cellular respiration
photosynthesis
chemosynthesis
consumption
Decomposers are important to ecosystems because they
return vital nutrients to the ecosystem
are producers
capture energy from the Sun
can be omnivores
A consumer gets energy by
absorbing sunlight.
breaking down dead organisms.
soaking it up from the ground.
feeding on other organisms.
The cycling of matter is important because
Matter can be created and destroyed
Only a limited amount of matter is available so it has to be recycled
Matter can only be found in a solution
Bacteria use matter to convert organisms into solar energy
What is the original source of energy for organisms in a food chain?
plants
sunlight
animals
consumers
When connecting grass and deer in a food chain, which way should the arrow face?
Towards the grass because the deer eats the grass
Towards the deer because the energy in the grass flows to the deer
Decomposition
consumes carbon dioxide
releases carbon dioxide
releases oxygen
destroys carbon atoms
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