Over the past approximately 100 years, it appears that average global temperatures have ____
A) increased slightly
B) fluctuated widely but shown no overall change
C) decreased slightly
D) remained constant
A
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Sustainable use of the earth's water resources involves
A. an integrated approach to managing water resources and preventing water pollution throughout each watershed. B. continued subsidizing of the market price of water so that there is fair distribution of water. C. emphasis on waste management over waste prevention. D. discharge of hazardous wastes into deep wells. E. channel pollution into the oceans instead of lakes and rivers.
For the same discharge, gradient, and channel cross-section, a stream with a boulder-strewn bed would be more turbulent than one with a sandy bed.
a. true b. false
El Niño years are particularly hazardous for mass wasting in California. Indicate whether the statement is true or false
Which of the following is currently an important secondary sector activity in Quebec?
A) Logging B) Aluminum mining C) Paper milling D) Electronics manufacturing