Of what value are the oceans in moderating climate change?
a. Oceans remove about 25% to 30% of the atmospheric carbon dioxide produced by humans.
b. Oceans reflect sunlight back into space before the ultraviolet wavelengths are converted into infrared radiation.
c. Oceans absorb about 40% of the methane out of the atmosphere that has been produced by rice paddies and livestock.
d. Oceans help to reduce the level of water vapor in the atmosphere through condensation and transpiration.
e. All of these answers.
A
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Which of the following serves as a sunscreen for the planet by blocking 95% of the sun's ultraviolet (UV) radiation and is not considered an air pollutant?
A. ozone in the stratosphere B. ozone in the troposphere C. carbon dioxide in the stratosphere D. sulfur compounds from volcanoes
Franglais, Denglish, and Spanglish represent
A) the corruption of grammar in European languages. B) lingua francas intended to compete with official languages. C) Vulgar Latin. D) scheduled languages. E) the infusion of English into French, German and Spanish and subsequent development of new words.
Summertime weather forecasts for cities on the shores of the Great Lakes often contain the phrase "cooler near the lake." Explain the relevance of this phrase.
What will be an ideal response?
What is the difference between a community and an ecosystem?
What will be an ideal response?