Which toxic substance causes Reduced IQ, developmental delays in children, and infertility in adults?Group of answer choicesCadmiumDioxinsAsbestosLead

Step 1: Identify the Toxic Substances

To find the substance that leads to reduced IQ, developmental delays in children, and infertility in adults, we need to examine each option:

1. Cadmium: Primarily affects the kidneys and bones; it is not specifically linked to the conditions mentioned.
2. Dioxins: Associated with various health issues, including immune system damage and reproductive problems but not prominently linked to IQ reduction or developmental delays.
3. Asbestos: Known for causing respiratory issues and cancer, not typically associated with IQ or developmental problems.
4. Lead: Well-known for causing neurological damage, leading to reduced IQ and developmental delays in children, as well as reproductive issues in adults.

Step 2: Analyze the Evidence

• Lead: Numerous studies have shown that exposure to lead, especially in early childhood, can result in significant cognitive impairments, including reduced IQ and developmental delays. Lead exposure has also been linked to infertility in both men and women.

Step 3: Conclusion

Based on the analysis, Lead is the most recognized toxic substance associated with reduced IQ, developmental delays in children, and infertility in adults.

Final Answer

The toxic substance that causes reduced IQ, developmental delays in children, and infertility in adults is Lead.