According to Figure 11.13, which option correctly describes the movement of two pins on either side of a plane in a block of clay submitted to tensional stress?
A) They remain in the same position.
B) They move farther from the plane.
C) They move closer to the plane.
D) They slide along at the same distance from the plane in opposite directions.
Answer: B
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One of the key components of chemical weathering is the presence of
A. water. B. acidity. C. neutrality. D. alkalinity.
Which one of the following countries dominated world production of steel and textiles during the nineteenth century?
A) United Kingdom B) Germany C) France D) United States E) Russia
Which is not a way that volcanoes can drastically change environments?
A) Volcanoes emit poisonous gases, potentially killing organisms within the environment. B) Volcanoes release heatwaves, making environments too hot for organisms to live. C) Lava flows from volcanoes, burning organisms and creating new rock. D) Volcanoes can trigger earthquakes , potentially causing ground breaks and altering the landscape.
One concern that environmentalists have is that market-oriented environmental tools are
A. an inflexible took that won't reduce pollution levels. B. an excuse to implement strict limits on emissions. C. an excuse to allow pollution to be maintained or to grow. D. able to achieve desired reductions in pollution at a lower cost.