What is the most abundant element in the atmospheres of Jupiter and Saturn?
A) hydrogen B) helium C) nitrogen D) ammonia
A
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If the region of Patagonia is on the leeward (rain shadow) side of the Andes mountains, the winds must be blowing from the _____, and Patagonia would be located in _____ .
A. east; Paraguay B. east; Chile C. west; Argentina D. west; Chile
Peru has large deposits of silver, tin, lead, and:
A) iodine B) manganese C) copper D) diamonds
Which of the following is false?
a. Radiation travels at the speed of light. b. Radiation may be classified according to wavelength. c. Radiation from the sun upon absorption by Earth is re-radiated to space as shorter wavelength radiation. d. Radiation refers to a process of energy transfer.
What is the primary nuclear reaction that takes place within the sun?
A. Nucleation B. Fusion C. Fission D. Solar wind E. Radiation