Answer:
Answer could be, B. give it a try. sorry if I'm wrong.
Answer:
industrial wastewater discharge, agricultural chemical fertilizer, sediment accumulation, ship garbage and acid rain were the main Yangtze River pollution causes. Only in 2016, there were 35.32 billion ton waste water flowed into the Yangtze River.
Explanation:
The enactment of the Clean Air Act of 1970 (1970 CAA) resulted in a major shift in the federal government's role in air pollution control. This legislation authorized the development of comprehensive federal and state regulations to limit emissions from both stationary (industrial) sources and mobile sources.
Answer:
They attacked passengers.
They disguised themselves as pilots.
They attacked flight crews.
They set off bombs
Explanation: