_____ are locations where a driver must stop and prove that the carrier has authority to operate in that state.

Fill in the blank(s) with the appropriate word(s).


Ports of entry

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What is used for bulk storage or transport of dry materials?

e. Weirs f. Dryers g. Hoppers h. Downcomers

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Answer the following statements true (T) or false (F)

1. The Clean Water Act, originally passed in 1972, was successful in achieving its stated goal of eliminating the release of "toxics in toxic amounts" by 1985. 2. The quality of water in the nation's rivers and streams has improved so much that by 2016 nearly 100% of that nation's rivers and streams had a biological condition of good. 3. The greenhouse effect refers to the physical phenomenon in which certain gases accumulate in the atmosphere and tend to warm the planet because they reflect solar radiation back to the planet. Since CO2 concentrations have increased from 250 parts per million in 1900 to almost 405 by 2016, the greenhouse effect has increased. 4. Externalities always arise because of a failure of transferability.

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In accordance with the general principle of measuring net quantities, excavation and backfill quantities are calculated using "____."

A. depth measure B. composite measure C. bank measure D. hold measure

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The United States uses over 21 million barrels of petroleum per day

Indicate whether the statement is true or false

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