Alpha and beta rays are deflected in opposite directions in a magnetic field because
A) they have opposite charges.
B) they spin in opposite directions.
C) alpha particles contain nucleons and beta particles do not.
D) all of the above
A
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Which of the following resources is NOT in danger of being depleted?
A. air B. minerals C. biodiversity D. topsoil
What is meant by the term monsoon wind system? Briefly describe or sketch the wind and pressure pattern during the summer and winter monsoon in Asia.
What will be an ideal response?
Which of the following best matches the description?Period of time when plant material accumulated in swamps and was ultimately converted to coal.
A. OPEC B. Carboniferous period C. OECD D. hydrogen fuel cell E. fossil fuels F. methanol G. Industrial Revolution H. gross domestic product I. hunter-gatherer J. compressed natural gas
Compared to the North Atlantic, hurricanes form in the South Atlantic:
A) more frequently. B) with about the same frequency and intensity. C) much less frequently. D) with about the same frequency, but with much less intensity.