2) What is an example of a cause-and-effect relationship found in either the timeline or Early American Flight?
A)
The number of annual commercial flights increased
to 173,000 by 1929.
B)
The United States Postal Service launched their
airmail service in 1918.
C)
By completing his flight, Lindbergh earned a medal
from President Coolidge.
D)
In 1923, the first transcontinental flight from New
York to San Diego was made.