Answer:
6 or 7 hope this helps you out.
Alfred Wegener hypothesis of continental drift was replaced in 1967 by plate tectonics. Today, the theory of plate tectonics is widely, this theory explains the structure of the earth's crust and many associated phenomena as resulting from interaction of rigid lithospheric plates that move slowly over the underlying mantle.
Three ways the railroad helped create modern America are: it made travel easier, stimulated commerce in the economy and increased trade.
Answer:
ANSWER: They retreated
Explanation:
i took test and its correct
They are Developing nations
