Answer:
The writer worries about being left out.
.
Explanation:
China's first great canal system, which created a northeast-southwest link from the Huang He (when the Huang had a northern course) to the Huai River, was built beginning in 605 during the Sui dynasty<span> (</span>
Cavalry<span> are those soldiers who fought battles mounted on horseback. </span>Infantry<span> is the category of soldiers that fights on foot. </span>Artillery<span> is the large guns/cannons used for targeting enemy positions which are beyond the range </span>
Answer: D. it lies in a valley, surrounded by mountains, that traps in air pollutants over the city.
Explanation: Being in a valley results in air pollution being contained to an area.
