Technological Change. First radio broadcast of Message: President Calvin Coolidge, 1923. First television broadcast of Message: President Harry Truman, 1947.
Correct answer is B
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Answer:
Your retina is in the very back of the eye. It holds millions of cells that are sensitive to light. The retina takes the light the eye receives and changes it into nerve signals so the brain can understand what the eye is seeing.
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Answer:
China’s complex natural conditions have produced an unevenly distributed population. Population density varies strikingly, with the greatest contrast occurring between the eastern half of China and the lands of the west and the northwest.
Explanation: