Questions: QUESTION 4 Approximately pollutants identified in very common building materials are known to cause asthma, allergies, cancer, and reproductive and nervous system disorders. a. 500 b. 600 c. 700 d. 800

The answer is c: 700.

Explanation for each option:

a. 500 - This number is lower than the commonly cited figure for pollutants in building materials known to cause health issues.

b. 600 - While closer, this number is still not the most commonly referenced figure.

c. 700 - This is the correct answer, as it aligns with reports and studies that have identified approximately 700 pollutants in building materials that can cause various health problems.

d. 800 - This number is higher than the commonly cited figure and is not typically referenced in studies related to pollutants in building materials.

In summary, the correct answer is c: 700, as it is the most accurate representation of the number of pollutants identified in common building materials that are known to cause health issues.