What aluminosilicate polymorph is stable at a pressure of 1.5 kilobars and a temperature of 600 degrees C?
A) sillimanite
B) kyanite
C) sillimanite and kyanite
D) andalusite
Answer: D
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Which of the following is not an internal control function of the American pattern of urban residential segregation?
A. The defense function B. The livelihood function C. The support function D. The preservation function
During a transgressive sequence, sedimentary facies migrate toward the ocean
a. True b. False
What is a rock-forming mineral? What will be an ideal response?
Which of the following statements regarding the benefits coral reefs provide to people is correct?
A) Coral reef tourism provides some countries with over 50% of their gross national product. B) About 300 million people worldwide depend on healthy reef systems. C) Fisheries associated with coral reefs supply more than one fourth of all fish from the sea. D) Coral reefs protect coasts from volcanoes, storm waves and tsunami. E) Coral reefs contain about twice as much algal biomass as animal biomass.