River water is usually a dilute solution of ____________ and ____________ ions. Fill in the blank(s) with the appropriate word(s)
bicarbonate; calcium
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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 alpha particles 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-235 absorbs alpha particles from the fissioning U-238. D. fissionable Pu-239 is formed as the U-238 absorbs neutrons from the fissioning U-235.
Mercury is a known neurological toxin. Which process is responsible for emitting it into the environment where it can be ingested by humans and other animals?
A. burning coal B. solar panel production C. nuclear fission D. burning natural gas
________ are long, linear scratch marks carved onto bedrock by glacial abrasion
A) Eskers B) Glacial troughs C) Glacial striations D) Hanging valleys
Define magma
A) Dissolved gases in molten rock B) A material's resistance to flowing C) Molten rock that has been erupted D) Molten rock found at depth that contains dissolved gases and some crystals