1. Which of the following are symptoms of lead poisoning in children? Select the three correct answers

A. rashes and skin irritation
B. learning difficulties
C. breathing difficulty and asthma
D. abdominal pain and vomiting
E. developmental delays
2. What happened to change the water quality in Flint?
A. The city built a new pipeline to connect to a nearby water system.
B. The city switched its water sources from the Detroit water system to the Flint River.
C. The city switched its water source from the Flint River to the Detroit water system.
D. The city added chlorine to the water supply, which removed harmful bacteria.
3. What was in Flint's water that caused 12 people to die?
A. lead
B. total triahalomethanes
C. Legionella pneumophila
D. Escherichia coli

answer all of them

1. B. learning difficulties, E. developmental delays, D. abdominal pain and vomiting

2. B. The city switched its water sources from the Detroit water system to the Flint River.
3. C. Legionella pneumophila (12 people died from Legionnaires' disease, a type of pneumonia caused by inhaling water mist contaminated with the bacteria.)