Is the greenhouse effect a completely bad thing for the planet? Why or why not?
What will be an ideal response?
Answer: No; some greenhouse warming is good for the planet, making climate conditions more favorable for our species. In the past, when CO2 levels were significantly lower than today, low CO2 levels contributed to a glacial climate. However, too much of the greenhouse effect results in significant warming, which can result in climates that are too hot for many species currently existing.
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Which of the following is not a common way to define the distance between an earthquake and a seismometer that records it?
A) by surface distance around Earth B) by angular distance to a satellite C) by angular distance to Earth's center D) by straight-line distance through Earth
The primary ethical issue associated with the practice of cloud seeding is
A) the concern that areas downwind of a seeded cloud will be deprived of precipitation B) the concern that resources devoted to cloud seeding activities would be better used in other activities C) the concern that cloud seeding should only be attempted by professional meteorologists D) the concern that cloud seeding introduces toxic chemicals into the environment
Numerical dating is putting events in order from first to last
Indicate whether this statement is true or false.
Which of these elements of folk culture has the most long-lasting impact as a mark of the origins and diffusions of folk culture?
A. transportation vehicles B. vernacular housing C. foods and music D. tools