Which item listed below has not helped to increase the carrying capacity of the Earth?
a. the development of nitrogen-based fertilizers
b. the development and application of chemical pesticides
c. the development and application of chemical herbicides
d. genetic modification of grains and other crops
e. the development of a vaccine for polio
E
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The German Meteor expedition, which explored the South Atlantic, was the first to use what innovation in depth
profiling? a. Deep-sea drilling b. Remotely operated vehicle c. Echo sounder d. Nuclear submarine e. Global Positioning System
Which of the following are Pacific Islands that were once U.S. possessions?
A) Guam B) American Samoa C) The Northern Mariana Islands D) Nauru E) A, B, and C are all current U.S. territories
Coarse-grained regolith where 20 to 80 percent of the fragments are greater than 2 millimeters in size is called
A) soil. B) rock. C) earth. D) debris.
Which of the following is not a method of obtaining samples and observations of the oceanic ridge system?
A) Finding segments of ocean floor that have been thrust up onto the continent B) Visual inspections using submersible equipment C) Deep sea core samples D) Side-scan sonar