<span>Knowledge of astronomy
was used by Muslims to fulfil religious obligations is the statement about the
Islamic Golden Age is a fact and not an opinion. So option “C” is the correct
option. A fact is actually something that has definitive proof while an opinion
can be based on assumption. During this period of Golden Age the Muslims had a
great knowledge about astronomy and this was a great achievement considering
the time. This Golden age actually is thought to have started from the mid-7th
century and lasted up to the mid-13th century. </span>
Which factor was a key reason for the economic success of the Greek city-states?
A. new farming techniques
B. geographical isolation
C. war and conquest
D. a booming system of trade
Answer:
D. a booming system of trade
Explanation:
One major reason for the economic success of the Greek city-states was their successful trade with other civilization.
Athens and Sparta engaged in trade with other countries, buying and selling which helped them to become economically secure and successful.
C: to declare war.
Congress is the only beach that can declare war.
