The higher the ratio of oxygen-18 to oxygen-16 in the shells of organisms that lived in the sea during the geologic past, the ____ the climate at that time
a. ?colder
b. ?warmer
c. ?wetter
d. ?drier
e. ?more humid
ANSWER: a
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The secret to Sweden's disposing of less than 1% of its MSW in landfills is
A) a combination of source reduction, recycling and burning MSW as fuel. B) leaving the disposal of MSW to individual citizens and businesses. C) outsourcing the nation's MSW to Denmark, Germany and France. D) recycling and reuse strategies.
Which of the following is the BEST indicator of the actual amount of water vapor in the air??
a. ?air temperature b. ?saturation vapor pressure c. ?relative humidity d. ?dew point temperature e. ?mixing ratio
Which of the following geologic materials usually has the highest permeability?
A. vesicular volcanic rock B. loosely cemented gravel and sand C. shales and similar types of rocks
Where are active dissolution processes rarely found?
A. rainforests B. humid climates C. low elevations D. arid climates E. wetlands