Mount Rushmore National Memorial was created at the height of the Great Depression in the 1930s by the use of explosives and jackhammers to sculpt granitic igneous rock
Which category of weathering (mechanical or chemical) best describes how the rock was broken down? Explain why you believe this is so.
What will be an ideal response?
Answer: The weathering was mechanical; - even though explosives were used, they did not change the chemical makeup of the rock. It was just broken into smaller pieces.
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Today, the use of other fossil fuels, nuclear power, and hydroelectricity instead of coal has greatly reduced the occurrence of industrial smog
Indicate whether the statement is true or false
What is the purpose of fruit? Why are many fruits edible? Are all fruits edible?
What will be an ideal response?
A job is done slowly, while an identical job is done quickly. Both jobs require the same amount of work, but different amounts of
A) energy. B) power. C) both A and B D) none of the above
Which of the following is NOT considered a pollutant when released by the actions of humans?
a. Water vapor b. Sulfur compounds c. Carbon monoxide d. Chlorofluorocarbons e. Photochemical smog