Which type of weathering is limited to arid environments?
(a) Exfoliation
(b) Frost wedging
(c) Hydrolysis
(d) Salt crystal growth
Ans: (d) Salt crystal growth
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Fossils became common starting with the Cambrian.
Answer the following statement true (T) or false (F)
The locations near cities where cattle are fattened in pens are called ________
Fill in the blank(s) with correct word
Compare the amount of municipal solid waste (MSW) generated per person in 2010 to that generated in 1960
If we remove the portion that could be recycled from the 2010 average, how would the remainder compare to the average per person MSW in 1960 when there was essentially no recycling? The average amount per person MSW in 2012 compared to 1960 would be A) about half that generated per person in 1960. B) about the same as that generated per person in 1960. C) about 10% more than that generated per person in 1960. D) almost double that generated per person in 1960.
The cleanup of hazardous waste accumulated in orphan sites is complicated because
A) most of the waste is buried below the water table. B) there is no responsible party to clean up the waste. C) the chemicals have evaporated before they could be removed. D) there are no longer places available to dispose of hazardous wastes.