Visible radiation is more successful in dislodging electrons from air atoms and molecules than ultraviolet radiation
a. True
b. False
ANSWER: False
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How do worms help plants grow?
A. They carry out chemical reactions that convert carbon dioxide to nitrogen. B. They add excrement, a source of nutrients, plus they produce air space by crawling through the soil. C. They are a source of minerals. D. They decompose organic material into compounds plants can use.
The troposphere is the atmospheric layer where
A) ozone absorbs incoming ultraviolet radiation from space. B) the Aurora Borealis occurs. C) weather occurs. D) temperature increases with altitude.
A gradient wind blowing around the low-pressure center is constantly accelerating because it is constantly changing directions. This is called ____
A) the pressure gradient force B) the Coriolis force C) centripetal acceleration D) cyclonic flow
Good health in the modern world, with few cases of bacterial infection, is largely the result of
A) the development and widespread use of new immunizations. B) clean water supplies and proper treatment of sewage. C) widespread use of bleach, antibiotics, and antibacterial soaps. D) frequent bathing and washing of clothing and dishes.