Since 1942 the use of synthetic pesticides has increased 10-fold. In spite of this fact, food supply damage due to pests has increased during that time
Indicate whether the statement is true or false
T
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What kind of fault is present in this image? What kind of stress generated it?
A) Normal fault; tensional stress B) Reverse fault; compressional stress C) Strike-slip fault; shear stress D) Thrust fault; compressional stress
Probably the largest concern with the geographer's use of maps and imagery is ________
A) choosing the most effective maps and imagery B) making sure it is available on the Internet C) to always use GIS D) to make sure the property of equivalence is always preserved E) to use images instead of maps when possible
Which is not true about social media?
A) Social media have started to play a role in breaking the monopoly of government control over the diffusion of information. B) Social media are even more difficult for governments to block or sensor as compared to TV or Internet. C) Social media are saturated globally and not significantly growing. D) In terms of the percentage of global social media users, the United States is on the decline, but still dominates the most popular twitter positions. E) According to map 4.8.4, China prefers QZone.
Which sediments arrive in the ocean from continents via wind and water?
A) terrigenous sediments B) biogenous sediments C) hydrogenous (or authigenic) sediments D) cosmogenous sediments