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
None of the above options are correct. No deaths have been directly attributed to Flint's water crisis, although there have been increased cases of Legionnaires' disease.
1. Developmental delays, learning difficulties, abdominal pain and vomiting. E D B
2. The city switched its water sources from the Detroit water system to the Flint River.
C
3. Legionella pneumophilla.
C
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1. To determine which of the following symptoms are signs of lead poisoning in children, we need to understand what lead poisoning is and its effects. Lead poisoning occurs when there is a buildup of lead in the body, usually from ingesting or inhaling lead-containing substances. The presence of lead can cause various symptoms and complications. It is important to note that lead poisoning affects different individuals differently, and symptoms may vary.
To identify the correct answers, we will consider the common symptoms associated with lead poisoning in children:
A. Rashes and skin irritation: Although lead poisoning can cause skin problems, such as rashes, they are not one of the primary symptoms typically associated with this condition.
B. Learning difficulties: Lead can impact brain development and cause cognitive impairments and learning difficulties in children. This symptom is commonly associated with lead poisoning.
C. Breathing difficulty and asthma: Difficulty breathing and asthma are not typically associated with lead poisoning. However, lead exposure can affect the respiratory system in various ways, including irritating the lungs.
D. Abdominal pain and vomiting: These symptoms are not commonly associated with lead poisoning in children.
E. Developmental delays: Lead poisoning can interfere with the normal development of a child's brain and nervous system, leading to developmental delays. This is a significant symptom of lead poisoning.
Based on these explanations, the three correct answers for the symptoms of lead poisoning in children are: B. learning difficulties, E. developmental delays, and possibly A. rashes and skin irritation (although this is less common).
2. To understand what happened to change the water quality in Flint, we will consider the provided options:
A. The city built a new pipeline to connect to a nearby water system: This option does not align with what occurred in Flint regarding water quality changes.
B. The city switched its water sources from the Detroit water system to the Flint River: This is the correct answer. In 2014, Flint changed its water source from the Detroit water system to the Flint River in an attempt to cut costs.
C. The city switched its water source from the Flint River to the Detroit water system: This option contradicts the actual events that took place in Flint.
D. The city added chlorine to the water supply, which removed harmful bacteria: Although chlorine is commonly used to disinfect water, it is not the cause of the water quality change in Flint.
Therefore, the correct answer is B. The city switched its water sources from the Detroit water system to the Flint River.
3. To determine what caused 12 people to die in Flint due to the water, we will consider the provided options:
A. Lead: This is the correct answer. The reason for the deaths in Flint was the presence of high levels of lead in the city's water supply, leading to lead poisoning and severe health complications.
B. Total trihalomethanes: Total trihalomethanes are chemical compounds that can form as byproducts when chlorine reacts with organic matter in water. While they can be a concern for water quality, they are not directly related to the deaths in Flint.
C. Legionella pneumophila: Legionella pneumophila is a bacteria responsible for causing Legionnaires' disease, a severe form of pneumonia. While there was an outbreak of Legionnaires' disease in Flint during the same period, it is not the direct cause of the deaths in question.
D. Escherichia coli (E. coli): E. coli is a type of bacteria that can contaminate water and cause illnesses, particularly gastrointestinal problems. However, it is not the reason for the deaths that occurred in Flint.
Therefore, the correct answer is A. lead.