Which group of silicate minerals has two planes of cleavage that are oriented at approximately 60° and 120°?

A) Pyroxenes
B) Potassium Feldspars
C) Amphiboles
D) Galena


Answer: C

Environmental & Atmospheric Sciences

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Answer the following statement true (T) or false (F)

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Which of the following can be classified as matter?

A. water B. sand C. ice cream D. perfume E. all of the above

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An area where climates could shift suddenly as a result of climate and environmental change is known as.....

A. Tipping point B. Environmental Degradation C. Global Warming D. Climate Change

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a. Osteichthyes b. Chondrichthyes c. Reptilia d. Ophiuroids

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