Smoochie

Social Studies

1 September, 14:37

What are some of the main causes of high levels of nitrogen in the waters of the Yangtze River?

a. The waste is from nuclear power plants

b. The bodies of dead animals are thrown into the river

c. The chemicals used in fertilizers run from the fields into the river

d. The exhaust fumes are from the millions of cars driven in this area of Asia