Region, is an area of a country or the world having definable characteristics but not fixed boundaries.
Hey There!
Stock market speculation <span>contributed to the Crash of 1929 and the Great Depression.</span>
Who is attributed with coming up with the most influential scientific innovation of the 18th and 19th centuries?
Select one:
<u>a. James Watt
</u>
b. Louis Pasteur
c. Andrew Carnegie
d. Charles Darwin
QUESTION 2
What innovation of this era of great scientific discoveries came about due to an error by a lab assistant?
Select one:
a. carbonized steel
b. steam engine
<u>c. vaccination
</u>
d. nuclear fusion
Changes in the Chinese economy since the 1970s have caused a significant population migration to
cities.
