The technological improvement that led to the era of European exploration is D. new instrument to observe the stars and navigate ships.
<h3>How to explain the information?</h3>
The exploration by the Europeans was believed to start from the 1400s and continued through the 1600s.
Some of the reason why the Europeans started the exploration of world through the sea in their quest and search for new trading routes, wealth, knowledge, dominance etc.
The European also believed they are in need to spread their religion to other places of the world.
Therefore, the technological improvement that led to the era of European exploration is new instrument to observe the stars and navigate ships.
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The term pigeonholding is used
there are no options, so:
China after WWII. The civil war that raged between the nationalists and the communists picked up again as soon as the Second World War ended. By 1949, Mao Zedong mobilized millions of peasants in the north who swept down and drove the nationalists out of power.
The best option is A
<span>Migration from farms to cities
It is estimated that about eleven millions Americans moved from the farms from 1870s to 1920s which strained the cities housing and health systems a great deal. in addition, it is estimated than another 25 million arrivals of immigrants was recorded.
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