Answer:
The following are the major causes of the war:
Treaty of Versailles. ...
Rise of Hitler and Militarism. ...
3.Rise of communism.
Economic crisis and rise of dictators. ...
Division of world into two blocks and beginning of the cold war: ...
The Marshall Plan: ...
The Molotov Plan (COMECON): ...
Establishment of UNO:
Hey there,
Your question states: <span>How did the calculation of pi help mathematicians during the Gupta period?
My best guess that I would give would be the option B. </span><span>
The value of pi helped them explain that Earth is a rotating sphere. Because they used the </span>

to help them, just as we use that in math.
Hope this helps.
~Jurgen
<span>runs east of the Red River of the North, cuts through Lake Winnipeg theres also one more reason i just dont remember it if you really want to know the last reason il get out my geo book n search it up k just message or most comany known as comment on this answer and il gladly find out the other reason</span>
The answer is B. Industrialization meant that countries could produce more weapons
It's important to note that most colonists, including the Puritans, didn't treat Native Americans with respect. They would enslave them, try to convert them to Christianity, and force them off the lands they had held for centuries (without any payment, even!). William Penn was different. He did NOT enslave them (B is incorrect), nor did he ignore them (C is incorrect). Instead, he tried to make peace with them. He treated them with respect, by letting them keep their traditions separate from the colonists (A is incorrect) and, when he needed land, paid a fair price for it. D is correct!
Answer: D