The reduction of pressure on a body of rock can cause it to crack as it expands.
Answer the following statement true (T) or false (F)
True
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The geologic evidence that much of North America and Europe was covered with glaciers until about 10,000 years ago provided evidence that
A. the kinds of plants and animals present at the time were adapted to cooler temperatures. B. sea level fell because water was tied up in glaciers. C. there has been great change in climate during the time humans have been present. D. All of these statements are correct. E. None of these statements is correct.
Warm air is capable of holding more water vapor than cooler air
Indicate whether the statement is true or false
Most granitic batholiths are generated ________
A) along transform faults, which accounts for their linear geographic distribution B) along hot spot chains beneath continents, like a welder cutting through the continent to make a linear belt of intrusive granites C) as intrusions beneath composite volcanos along convergent plate margins D) where spreading ridges occur beneath continents
A pulley system raises a 1000-N load with 100 N of input force. The efficiency of the system is
A) 10 percent. B) 90 percent. C) 100 percent. D) 1000 percent. E) not enough information given