Picric acid is always stored wet, often in glass bottles in water. If the crystals dry out, they can explode. Therefore, picric acid demonstrates a high level of ________
A) ignitability B) toxicity C) corrosivity D) reactivity
D
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For his work on characterizing the state based on such factors as climate, terrain and the relationship between population and territory, ________ is often considered the first political geographer
A) Aristotle B) Friedrich Ratzel C) Halford Mackinder D) Louis Althussser E) Montesquieu
Students do not need to be concerned with environmental geology problems because they are all global
in scale. Indicate whether the statement is true or false.
Plastics in the sea are a hazard to marine life because ________.
A. they ensnare animals B. they are eaten by animals C. they ensnare animals and they are eaten by animals D. their colors confuse animals E. they ensnare animals, they are eaten by animals, and their colors confuse animals
Channels that add their flow to a trunk stream are called ____________________
Fill in the blank(s) with correct word