Why were tobacco and rice good cash crops for Virginia, Maryland, and the Carolinas?

hot/humid growing seasons, rich soil and suited lowlands

Explanation:

rice and tobacco were very good cash crops because tobacco thrives in the hot and humid growing season of virginia and coastal maryland. they also had good soil/rich soil. rice well suited to the swampy lowlands and tidal areas of coastal rivers in the carolinas.

the mongolian invasion of china and central asia resulted in a disruption of the silk road as the chinese garrisons lost support from the chinese kingdoms which fell under the mongols. however, as the mongols established a formal dynasty in china, the successors of genghis khan restored the garrisons along the silk road allowing the safe travel caravans again.

- "the most famous structure by far at saqqara is djoser's step pyramid. dating from the 3rd dynasty (2667—2448 bc), it was the first all-stone complex ever built on earth."

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