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The measurement of concentration of hydrogen ions in a solution
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PH
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Which of the following statements is false?
a. Energy can be converted from one form to another b. Energy conversation results in higher quality energy c. The laws of thermodynamics can be applied to living systems d. Energy and matter can generally be converted into each other e. Energy input always equals energy output |
B. Energy conversation results in higher quality energy
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When new information or ideas can disprove or overthrow a well-accepted scientific theory
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Paradigm Shift
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Ecology is the study of...
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Relationships between organisms and their environments
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Which of the following is an example of low-qualiity energy?a. electricity b. gasolinec. nuclear fissiond. food for an organisme. heat in the ocean
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E. heat in the ocean
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Scientists have identified several problems with relying primarily on pollution cleanup. Which of the following in not one of those problems?a. It often simply moves the pollutant from oneplace to another.b. Once pollutants are released it is difficult to extract them fromthe environmentc. It is only a temporary bandage as long as the situation remains the samed. Elimination of pollution at the time of production is expensive.e. All of these are identified problems
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D. Elimination of pollution at the time of production is expensive.
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Which of the following does not represent kinetic energy?a. steamb. the wind blowingc. a car sitting at the top of a hilld. electricitye. water in a stream
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C. a car sitting at the top of a hill
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A positive feedback loop is illustrated by all of the following excepta. exponential population growth b. the greenhouse effectc. a thermostat maintaining a certain temperature in your housed. compound intrest in a savings accounte. none of these
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C. a thermostat maintaining a certain temperature in your house
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Which of the following would not be organic molecules?a. waterb. lipidsc. nucleic acidsd. proteinse. hydrocarbons
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A. water
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Scientists try to reduce errors in their observations and measurments by
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-repeating measuremets several times and taking the average value-using standard procedures-testing measuring devices against known samples-reducing bias
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Earth's supply of concentrated, useable energy is being steadily...
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Depleated
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The community knew the effects of chemical X when it was used alone. They knew the same for chemical Z, so they set safe limits for use for both chemicals. When the chemicals were released at safe levels on the same day there was a massive fish kill. The most likely explanation is...
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A synergistic interaction
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The primary difference between renewable resources and nonrenewable resources
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The length of time it takes for them to be replenished
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Developed counties, with _____ people, include the countries of ____.
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1.2 billion; Japan, Australia, Germany
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An example of an organinc compound
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C8H18
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