An aquifer bounded above and below by impermeable layers of rock and clay is called a(n)
A) spring.
B) unconfined aquifer.
C) confined aquifer.
D) water table.
E) artesian well.
C
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When will the majority of consumers be less willing to buy products with harmful environmental impacts?
A. when the environmental costs are included in the product pricing B. when the shipping costs are included in the product pricing C. when the storage costs are included in the product pricing D. when the advertising costs are included in the product pricing
What is our primary evidence of past ice ages?
What will be an ideal response?
Health problems associated with indoor air pollution in developing countries is most commonly associated with
A) chlorine gas released from tap water. B) carbon monoxide generated by the use of biofuels for cooking and heating. C) poor hygiene and sanitation inside the home. D) the widespread use of pesticides to control disease vectors.
How is temperature defined?
A) energy associated with an object by virtue of its motion B) energy transferred into or out of an object. C) a measure of the average kinetic energy of the atoms or molecules in a substance D) energy released or absorbed due to a phase change E) the transfer of heat through molecular collisions from one molecule to another