An igneous rock that can be expected to contain large (>1 mm diameter) visible grains of quartz is:
a) Gabbro
b) Granite
c) Basalt
d) Peridotite
e) Andesite
Ans: b) Granite
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The point of origin of an earthquake at depth is called _____.
a.) a foreshock b.) the epicenter c.) the focus d.) an aftershock e.) the fixed point
As seawater evaporates, the remaining water has ________ salinity and ________ density
a. lower; lower b. higher; higher c. higher; lower d. lower; higher
The concept of biological fitness is based on two separate abilities. These are the ability to
A) survive all environmental resistance factors and reproduce. B) find a mate and have offspring. C) defend against enemies and find food. D) produce and defend a family.
Which of the following is considered a cultural hazard?
A. smoking cigarettes B. contagious viruses C. unsafe sex D. earthquakes E. unsafe working conditions