The image below shows a beam of radiation passing between two electrically charged plates. 
Which of the beams is due to alpha particles?
A. a
B. b
C. c
D. all of the above
E. none of the above
Answer: C
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Nuclear fusion reactions
A) were used in the atomic bombs dropped on Japan in 1945. B) require conditions that are not yet cost-efficient for the generation of electricity. C) are widely used today in nuclear power plants. D) can only occur in the special conditions of the sun and stars.
A volcanic breccia texture indicates that
A. the rock broke apart as it flowed. B. there was a lot of gas in the magma. C. the rock cooled slowly. D. the ash and pumice were hot and became compacted. E. the rock cooled quickly.
British colonial cartographers created the country of Nigeria despite its ethnic rifts in what some still refer to as the _____ of 1914
Fill in the blank(s) with correct word
Lava that erupts from a volcano and cools at Earth's surface is termed _______________ igneous rock
Fill in the blank(s) with correct word