Answer:
D.irrigation ditches and canals
Explanation:
The Tigris and the Euphrates follow roughly parallel courses as they flow from the highlands of eastern Turkey through Syria and Iraq and into the Persian Gulf. The rivers flooded the area every spring when snow from nearby mountains melted and made its way into their currents. Little by little the cities that were adjacent to the rivers managed to produce enough food to trade with other settlements.
Hopefully this helps you!
Pretty much nothing was gained for the Americans except for riots and death.
Answer
Where did he go - He visited the states of Southeast Asia, the coast of India, the Persian Gulf, the Red Sea, and the east coast of Africa.
Who did he meet - He met the treachery from King Alagonakkara of Ceylon.
What did he see - He saw 7 new animals
What did he find - He found lions, leopards, ostriches, zebras, and other animals...
How did his visit impact that area - He expanded China's political influence in the world, and he made policital ties with other nations.
What important information did he bring back - The THINGS he broght back was lions, leopards, ostriches, zebras, and other animals... People thought they were really important because a Giffrafe was kinda like a Chinese unicorn ( qilin ) which represented good fortune.
Water was preferred to land when transporting heavy cargo to avoid the<span>destruction of roads.
</span>
