Which of the following causes the formation of large crystals such as pegmatite?
A) high fluid content of magma
B) high heavy metal content of magma
C) high silica content of magma
D) high solidification factor of magma
Answer: A
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Along the shoreline of a pond, Canadian geese, American toads, and grass frogs search for food while bluegill and bass prey on small fish in the shallow water. These species, living and feeding in this particular location, represent one
A) species. B) population. C) community. D) ecosystem.
Which of the following three isomeric alcohols, 2-pentanol, 2-methyl-2-butanol, and 3-methyl-2-butanol, are chiral?
A) only 2-pentanol B) only 2-methyl-2-butanol C) both 2-pentanol and 2-methyl-2-butanol D) both 2-pentanol and 3-methyl-2-butanol
In terms of the air temperature and water vapour content, explain how the relative humidity normally changes during a 24-hour day.
What will be an ideal response?
If the scale of a map is 1:100,000, then 1 centimeter on the map represents ________ on Earth's surface
A) 1 kilometer B) 10 kilometers C) 10,000 kilometers D) 100,000 kilometers E) It depends on the size of the map.