It has been said that recycling has grown too fast in the United States. Explain
What will be an ideal response?
Answer: In many cases we have generated more recyclable waste than the market for these materials can accept; manufacturers may need to develop ways to use recycled materials or produce products that generate less waste.
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The primary cause of terrace formation is
A) an increase in channel load. B) a decrease in flood frequency. C) an increase in a river's velocity. D) flow through loose sediment.
Based on the examples and discussion in Chapter 4, what is the relationship of climate to weathering, both chemical and mechanical? Also, are certain climates more susceptible to certain types of weathering? Why or why not?
What will be an ideal response?
A study by the Environmental Protection Agency looked at the costs and benefits of the Clean Air Act from 1970 to 1990. This study found that a middle-range estimate of the health and other benefits from cleaner air was $22 trillion. This amount was about __________________ than the costs of reducing the pollution.
A. 10 time lower B. 44 times higher C. 10 times higher D. 44 times lower
Research into in situ (underground) coal gasification is in progress, but there is concern about subsidence over the gasified coal beds.
Answer the following statement true (T) or false (F)