Question

how chemists help the environment
chemists are involved in all aspects of environmental protection. in the case of lead, chemists measured the amount of lead in soil, paint, plumbing, blood, and other materials. chemists studied the chemical processes in the body to see how lead did its damage. methods for removal of lead from the body were developed with the help of chemists. new gasoline products were developed that gave good fuel efficiency and smooth running of the engine without the presence of lead.
chemists continue to look for threats to our health and the environment and to search for alternatives so that harmful chemicals can be replaced with others that will do the job as effectively, but without the harm.
summary

• environmental contamination is a major problem today.
• lead contamination has serious harmful effects on the body.
• chemists contribute in many ways to helping with issues of lead contamination.

review

1. where was lead found in products?
2. what is a hazard of lead?
3. what happens to the lead in used car batteries?
4. list two ways chemists help with issues related to lead contamination.

Explanation:

1. The text mentions lead was found in soil, paint, plumbing, blood, and other materials.
2. Lead contamination has serious harmful effects on the body as stated in the summary.
3. The text does not mention what happens to lead in used car batteries.
4. Chemists measured the amount of lead in various materials and developed methods for removal of lead from the body.

Answer:

1. Soil, paint, plumbing, blood, and other materials.
2. Lead contamination has serious harmful effects on the body.
3. No information provided in the text.
4. Measured lead amounts in materials; developed lead - removal methods from the body.