Autotrophs are responsible for ____________________ productivity
Fill in the blank(s) with correct word
primary
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Which of the following statements is false?
A) After hitting a peak around 1970, the world NIR has been declining steadily through the late twentieth century and the early twenty-first B) Between 1980 and 2010, the CBR declined in most of Western Europe C) In most countries, the decline in the NIR has occurred because of lower birth rates D) Western Europe has always emphasized the availability of contraceptives rather than education and improved health care to bring down CBRs E) Countries with high NIR rates tend to have lower literacy rates compared to those with low NIR
What is a feasible alternative to fossil fuels that might be able to generate enough energy to meet the world's needs?
A) Methane hydrate B) Nuclear power C) Wind power D) Tide power
Which of the following would have most likely prevented the deadly 1948 smog in Donora, PA?
A) The shift of industrial production from the day to evening hours B) The addition of scrubbers to the smokestacks used by the Donora industries in order to remove effluents C) Increased use of coal to generate electricity and heat homes in the region D) Use of high sulfur instead of low sulfur coal to generate electricity and heat homes
Where is the Three Gorges Dam, why did China build it, and what are the major problems associated with its construction?
What will be an ideal response?