True/False
Indicate whether the
statement is true or false.
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1.
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In the 1980s, there was a backlash against environmental laws and regulations,
led by some who argued that environmental laws were hindering economic growth.
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2.
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In the 1980s, there was a backlash against environmental laws and regulations,
led by some who argued that environmental laws were hindering economic growth.
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3.
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. Sustainability is the capacity of the earth’s natural system and
human cultural systems to survive, flourish, and adapt to changing environmental conditions in the
very long-term future.
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4.
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Polluting substances enter the environment through human activities
alone.
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5.
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Natural resources are considered natural capital, whereas natural services are
not.
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6.
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Because scientific theories are tentative
explanations, they should not be taken seriously.
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7.
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Once scientists have analyzed data from an
experiment, they may propose a testable hypothesis to explain those data.?3?
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8.
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When a natural system gets locked into a positive
feedback loop, it can reach an ecological tipping point.
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9.
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Carbon is an element.
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10.
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Peer review involves scientists openly publishing
details of the methods they used, the results of their experiments, and the reasoning behind their
hypotheses for other scientists working in the same field to evaluate.
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11.
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Only about 0.024% of the earth’s vast water supply is available to humans
and other species as liquid freshwater
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12.
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Water contracts when it freezes, making ice more dense than water.?3?
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13.
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The hydrologic cycle collects, purifies, and distributes the earth’s fixed
supply of water.?3?
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14.
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Detritivores are consumers that release nutrients from the dead bodies of living
organisms and return them to the soil, water, and air.
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15.
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Because the earth does not get significant inputs of matter from space, its
essentially fixed supply of nutrients must continually be recycled to support life.
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16.
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?3?Before humans evolved, species never went extinct.
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17.
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In speciation, two species interbreed to form one new species
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18.
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Most of the earth’s species of flowering plants depend on insects to
pollinate their flowers.
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19.
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Generalist species are more prone to extinction when environmental changes
change rapidly than specialist species.
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20.
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It is impossible for a shark that has been caught and returned to the
ocean to drown.
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