Deserts are the one environment where wind erosion is more important than water erosion
Indicate whether the statement is true or false
False
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It is most economically and environmentally sound to focus water resource management on
a. increasing the water supply b. controlling the "mining" of groundwater c. reducing unnecessary waste of water d. developing desalination plants e. cloud seeding and towing icebergs to arid regions
After a uranium fuel rod reaches the end of its fuel cycle (typically 3 years) most of its energy comes from the fissioning of plutonium because
A) fissionable Pu-239 is formed as the U-238 absorbs neutrons from the fissioning U-235. B) fissionable Pu-239 is formed as the U-235 absorbs neutrons from the fissioning U-238. C) fissionable Pu-239 is formed as the U-238 absorbs alpha particles from the fissioning U-235. D) fissionable Pu-239 is formed as the U-235 absorbs alpha particles from the fissioning U-238.
The energy of light is called electromagnetic radiation. In the electromagnetic spectrum, photosynthesis makes use of which specific wavelengths?
A) X-rays B) the entire electromagnetic spectrum C) visible light D) ultraviolet radiation E) infrared radiation
What does the isolation of agriculture in the Pacific Islands mean for the global market?
A) low access to market B) excessive chemicals C) organic coconut and vanilla D) genetically modified organisms (GMOs) E) none of the above