Where is the geological feature where the juan de fuca plate is punching under the north american plate

Distance that the transcontinental railroad covered from omaha to san francisco.

Which was not a country that massively built up its navy in the early 1900s? germany china united statesbritain

Good scientists always report their observations and results truthfully. this is especially important when a scientist's results go against previous ideas or predictions. coming up with inventive ways to solve problems or produce new things