Which policy would make us aware of the hidden costs of water?
A. full-cost pricing
B. reduced-cost pricing
C. make all food free
D. turn farms into communes
Answer: A
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A 200-m length of copper wire is heated and gains 0.18 m in length. If the wire were instead 100-m long, the length gained would be
A. 0.09 m. B. also 0.18 m. C. 0.36 m. D. more than 0.36 m.
Which of the following types of radiation can pass completely through the body?
A) a B) b C) g D) none of them
Which of the following is NOT a criteria to be classified as a mineral?
A) Specific chemical composition B) Crystalline structure C) Solid D) Anthropogenic E) Inorganic
Mid-latitude waters are generally fresher than polar or subtropical zones because
A. more evaporation, less frontal precipitation. B. less evaporation, less frontal precipitation. C. more evaporation, more frontal precipitation. D. less evaporation, more frontal precipitation.