SAT Sentence Completion Practice Question 64: Answer and Explanation

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Question: 64

4. Because Congress exempted the ------- of household products from its regulation of hazardous waste, consumers continue to contribute to toxic pollution by improperly ------- dangerous substances.

A. purchase . . manufacturing
B. enlargement . . preserving
C. distribution . . eliminating
D. abundance . . economizing
E. disposal . . discarding

Correct Answer: E

Explanation:

Skill: Understanding the content, form, and function of sentences

Explanation for Correct Answer E :

Choice (E) is correct. "Disposal" is the act of getting rid of something; "to discard" means to throw away. If one were to insert these terms into the text, the sentence would read "Because Congress exempted the disposal of household products from its regulation of hazardous waste, consumers continue to contribute to toxic pollution by improperly discarding dangerous substances." The word "because" indicates that the sentence describes a cause-and-effect relationship. It is logical that consumers continued to improperly discard toxic household products when Congress failed to control their "disposal."

Explanation for Incorrect Answer A :

Choice (A) is incorrect. "Purchase" is the act of buying something; "to manufacture" means to make. If one were to insert these terms into the text, the sentence would read "Because Congress exempted the purchase of household products from its regulation of hazardous waste, consumers continue to contribute to toxic pollution by improperly manufacturing dangerous substances." It is highly unlikely that the "purchase of household products" would prompt consumers to make toxic substances.

Explanation for Incorrect Answer B :

Choice (B) is incorrect. "Enlargement" is the act of making something bigger; "to preserve" means to keep safe. If one were to insert these terms into the text, the sentence would read "Because Congress exempted the enlargement of household products from its regulation of hazardous waste, consumers continue to contribute to toxic pollution by improperly preserving dangerous substances." It is illogical to claim that the "enlargement" of household products would lead to the improper preservation of dangerous substances.

Explanation for Incorrect Answer C :

Choice (C) is incorrect. "Distribution" is the act of marketing and delivering something; "to eliminate" means to get rid of. If one were to insert these terms into the text, the sentence would read "Because Congress exempted the distribution of household products from its regulation of hazardous waste, consumers continue to contribute to toxic pollution by improperly eliminating dangerous substances." It is unclear how the "distribution" of household products would affect the way that consumers get rid of them.

Explanation for Incorrect Answer D :

Choice (D) is incorrect. "Abundance" means a great quantity; "to economize" means to be thrifty. If one were to insert these terms into the text, the sentence would read "Because Congress exempted the abundance of household products from its regulation of hazardous waste, consumers continue to contribute to toxic pollution by improperly economizing dangerous substances." It is illogical to claim that a lack of congressional regulation of toxic products would lead to improper consumer "thriftiness."

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