How many different minerals have been identified and described?
More than 3,800 have been identified.
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Which of the following is NOT a way to form layers in a sedimentary rock?
A. occurrence of a discrete event like a flood B. a change in climate of the region C. a change in the strength of the current D. a change in the supply of sediment E. All of these are ways to form layers.
In the middle latitudes of the Northern Hemisphere, the day with the shortest number of daylight hours occurs on ____
A) June 21 B) December 21 C) September 22 D) January 1
Air may best be described as
What will be an ideal response?
Marriage dowries in India reflect
A) that some families value male children more. B) a legally enforced tradition. C) a popular fad. D) the value of women as mothers and wives. E) that most families value female children more.