Answer:
d. civil war
Explanation:
The Persian Empire spanned through several countries in and around the modern Iran. It was a global hub of culture, religion, science, art and technology before it was conquered by Alexander the Great. After a failed invasion of Greece by Xerxes I, Persia started to decline. In order to strive it had to raise taxes which then caused rebellion among people, against its rulers. Even though there was a threat of invading armies of Alexander the Great, there were constant plots to take over the throne which resulted in the rising weakness of the rulers which made it easy for Alexander the Great to regain Greek territories and enlarge his empire all the way to India.
The first person to sail around Africa and to reach India ( and to get some precious spices from there!) was Portuguese Vasco da Gama, who did this in his journey that started in 1497 and reached India in 1498 ( and returned in 1499)
The answer is 4. Precipitation. Hope this helps!
When a parent pays for a child's piano lessons, he or she is engaged in "generalized reciprocity".
Generalized reciprocity is blessing giving without the desire of a quick return. For instance, on the off chance that you are shopping with a companion and you get him some espresso, you may anticipate that him will get you one consequently sooner or later. In any case, you would likely be somewhat affronted on the off chance that he demanded getting you some espresso while you got him one. To do as such would propose that he doesn't wish to end up associated with a proceeding with complementary trade with you. It might be said, it is a dismissal of your token of kinship.
