The first minerals to crystallize are those with the
A) higher melting point.
B) lower melting point.
A
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The forecasting of weather by a computer is known as numerical weather prediction
a. true b. false
Dilution or mixing of air pollutants into the surrounding air is best when:
A) inversions are present. B) air is unstable. C) relative humidity is high. D) air is very cold. E) winds are calm to light.
In alkenes there are four groups bonded to the carbons which constitute the carbon-carbon double bond. Which of the following situations produces cis-trans isomerism?
A) when all four groups are the same B) when the two groups bonded to each carbon atom are different from one another C) when three of the four groups are the same, but the fourth group is different D) None of these results in the existence of cis-trans isomerism.
Glacial ice can form during the duration of a single winter season in most glacial areas
Indicate whether the statement is true or false