A cubic centimeter each of quartz, olivine, and native gold weighs 2.5, 3.0, and 19.8 grams, respectively. These weights indicate that ________.
A) gold has a higher density and specific gravity than quartz and olivine
B) olivine melts at a higher temperature than either gold or quartz
C) gold is 6 to 7 times harder than olivine and quartz
D) gold and olivine qualify as silicates, but quartz would not
Question 2
________ is an example of a pesticide that qualifies as a form of biological pest control.
A) Lindane
B) Organophosphates
C) Carbamate
D) Pheromones
E) DDT