The biggest factors would be food and water.
Answer:
The Silk Road extended approximately 6,437 kilometers (4,000 miles) across some of the world's most formidable landscapes, including the Gobi Desert and the Pamir Mountains.
Hope this helped you.
A:water pollution in the river Thames
FYI: This occurred in London, in July and August
More soldiers, use of mercenaries, more supplies, better experienced
"Since the Union was created by the states, they could leave it at any time" view was held by most Southerners of the secession crisis of 1860-1861
Option c
<u>Explanation:</u>
After the election of Abraham Lincoln as president of America in the year 1860 – 61, 11 states of the southern region of America formally withdrawn from the federation of states.
The main reason for withdrawal of Southern state from union is that the political leaders are in favor of slavery because their main sources of income is from the agriculture where it need lot labor to work on their agricultural fields. Whereas northern part of America are in support of anti slavery.
