How many different minerals have been identified and described?


More than 3,800 have been identified.

Environmental & Atmospheric Sciences

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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.

Environmental & Atmospheric Sciences

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

Environmental & Atmospheric Sciences

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.

Environmental & Atmospheric Sciences

Air may best be described as

What will be an ideal response?

Environmental & Atmospheric Sciences