The acceleration of a block of ice sliding down an inclined ramp
A. is approximately constant.
B. decreases with time.
C. increases with time.
D. need more information
Answer: A
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Which of the following is not an effect of tension?
A) thrust faults B) normal faults C) decrease in elevation D) shrinking of mountain roots
Energy policies that promote the use of renewable-energy resources
A) and oil and gas exploration are the most promising ways to address global climate change. B) and efficiency will automatically reduce the generation of greenhouse gases. C) increase the demand for fossil fuels and require the importation of oil to most countries. D) hurt the poorest families and discourage economic growth in developing countries.
A key that explains symbols used on a map is called a(n) ____________________
Fill in the blank(s) with correct word
Which part of the Moon is the oldest and why?
A. The dark circular maria because they have had more time to darken. B. The light-colored lunar highlands because they contain a higher density of craters per area. C. The light-colored lunar highlands because they are lighter in color from longer weathering. D. The dark circular maria because they have had more time to be eroded and smoothed off. E. None of these choices are correct.