Which of the following acids is used in the synthesis of the polymer nylon-66?

A) adipic acid
B) palmitic acid
C) stearic acid
D) none of these


A

Environmental & Atmospheric Sciences

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When did the harvesting of commercial whale species cease?

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Select from the list below the coarse-grained rock which is composed mainly of quartz and potassium feldspar

A) diorite B) andesite C) basalt D) granite

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In most places, which of the following is usually not an important in the weathering process?

A) Microscopic open spaces B) Exfoliation C) Joints D) Faults E) Solution cavities

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Geologists are correlating past geologic events to see if there are correlations with climate changes

Indicate whether the statement is true or false

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