Natural Resources – Flashcards
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It is expected that US forests will _______.
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b.
be able to meet long term timber needs
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The US consumes almost _______ of timber annually.
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b.
20 billion cubic feet
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Water would be considered a _______.
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c
actual renewable resource
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Nonrenewable resources, like fossil fuels, were produced through biological processes.
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T
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Wild animals are not considered a natural resource.
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F
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The La Brea Tar Pits are an example of a fossil fuel that
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Takes centuries to create.
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Based on the food chain below, if a bald eagle acquires 50 kg of energy, how much energy did the herbivorous duck get from the aquatic vegetation?
aquatic vegetation mc024-1.jpg herbivorous duck mc024-2.jpg bivalves mc024-3.jpg sea ducks mc024-4.jpg bald eagle
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50,000
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What is the primary source of energy for food chains in an ecosystem?
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the sun
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Which best describes a difference between energy transformations in power plants and dams?
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Only power plants use fossil fuels to transform energy.
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Hedea made a study chart about nuclear energy.
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Fission and fusion convert nuclear energy to both radiant and thermal energy.
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The total energy in a system is 675 J. The kinetic energy changes from 296 J to 432 J. Which statement best describes the potential energy of this system?
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It changes from 379 J to 243 J.
