How many more electrons can fit within the valence shell of a hydrogen atom?
A. 2
B. 1
C. 0
D. 7
Answer: B
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In the United States, dryline thunderstorms are most common
a. in the Rocky Mountains b. in the desert southwest c. in the Great Plains d. in California e. in Florida
Yellowstone is located on top of a ________, which causes the park's geysers and hot springs
Fill in the blank(s) with correct word
The typical alluvial fan:
a. has largest sediment sizes at its apex. b. consists of loess. c. has a flat top. d. is deposited by eolian processes. e. is covered by ripples.
Because of the success of China's population control programs, ________.
a. there is a younger population in China today b. European nations have instituted similar programs c. African nations have instituted similar programs d. environmental problems in China have been virtually eliminated e. China's population growth rate is much lower than it was in the 1970s