Which of the following was Becquerel studying when he accidentally discovered radioactivity?
A) fluorescence
B) phosphorescence
C) photography
D) the photoelectric effect
B
Environmental & Atmospheric Sciences
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Reptiles are endotherms. Indicate whether the statement is true or false
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About how many bison were living on the Great Plains before Euro-Americans began hunting them?
A) 80,000 B) 800,000 C) 8,000,000 D) 80,000,000
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Most hot springs in the United States are located in the southeast, especially Georgia
Indicate whether the statement is true or false
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