In closed loop recycling, ________
A) materials are incinerated without first recovering what is recyclable
B) a material is recycled into a different product
C) materials are recycled an infinite number of times
D) the product is made from another type of material and discarded after use
E) the product is reused to produce a similar product
Answer: E
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A country has 40,000,000 people currently living in it this year. It also has had 300,000 live births. The CBR for this country is ________. (Take your answer out to one decimal place)
A. 0.75 B. 133.3 C. 7.5 D. 13.3
In the time span between pre-European settlement to the present, the United States has lost approximately 50% of its wetlands. Which of the following is NOT a contributing cause?
A. The value of wetlands was not recognized. B. Wetlands were considered unhealthy. C. The wetlands were drained for development or farming. D. Wetlands were used as parks and wildlife refuges.
Regarding electromagnetic energy, it is true that
A) wavelength is one half the height from peak to crest. B) solar radiation is "shortwave radiation." C) the Earth's radiation is of shorter length, on average, than the Sun's. D) longwave radiation is more energetic than shortwave radiation. E) the Earth absorbs most shortwave radiation at night.
Ice regelation incorporates rock debris into a glacier
Indicate whether the statement is true or false