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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There will be political stability
There will not be conflict between the different parties
There will be a great environment for the pace of development of the country
<span>It was John Adams. It
was Adams who defended the British soldiers who fired on the colonist during
the Boston Massacre. He was able to
successfully defend them even though it was unpopular to do. He did this
because of his belief that everyone had the right to counsel. Adams was also one of the Founding Fathers of
the United States of America. Later he
would become George Washington’s Vice-President and later became the second
President of the United States. He along
with Thomas Jefferson contributed to the writing of the Declaration of
Independence.</span>
A. the start of the cold war
Barack Obama is the answer.
Hope this helps !
Photon