What evidence made scientists hypothesize that dust contained calcium?
A) crystals found high on ridges
B) limestone formations on prairies
C) the color of dust on windswept plateaus
D) dissolved calcite in the ground
Answer: D
Environmental & Atmospheric Sciences
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a. true b. false
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What type of cloud that has a thin wispy appearance, consists of ice crystals, and often precedes a warm front?
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