The only continent that does not presently have glaciers is:
a. South America.
b. North America.
c. Africa.
d. Europe.
e. Australia
E
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Many states, countries, and corporations dispose of their waste overseas because it is
A. The only possible method B. The safest method C. Extremely cheap D. More convenient E. The best way environmentally
When the remains of an organism dissolve and leave a cavity, the resulting structure is called
a/an _______. Fill in the blank(s) with the appropriate word(s).
A stream is transporting Particle A. The velocity of stream is decreasing, but for the moment, Particle A is still moving
However, when the water drops below 50 cm/sec, Particle A falls below its fall velocity and is deposited. Based on this information, what is the likely particle size for this object? A) 0.01 mm B) 0.1 mm C) 5 mm D) 10 mm
What factor(s) can explain the uncertainty in estimating the availability of mineral resources?
a. Discovery of new mines and extraction techniques. b. Changing trends in consumer demand. c. Advances in recycling technologies. d. All of these can explain the uncertainty.