Which of the following is NOT one of the eight most common elements in the Earth's crust?
a. potassium
b. calcium
c. aluminum
d. carbon
Ans: d. carbon
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For each of the following subatomic particles, state where it can be found and what its charge is:
proton, electron, and nucleus. What will be an ideal response?
Global warming will likely affect forests by
A) shifting most forest types toward the equator. B) increasing rates of photosynthesis. C) decreasing their overall extent. D) all of the above E) none of the above
Which requires more work on the brakes of a freight train?
A. equal amounts of work for either. B. Slowing down from 100 km/h to 70 km/h. C. Slowing down from 70 km/h to a stop. D. need more information
Why do you think Phelan Island and Golden State Island have the names they do? Describe how they were formed.
What will be an ideal response?