In industrialized nations,the two most deadly sources of indoor pollution are ________________
A)synthetic furniture materials and radiation from electronic equipment
B)pesticides and cleaning agents
C)pesticides and cigarette smoke
D)radon and cigarette smoke
E)radiation from electronic equipment and pesticides

Question

Quizplus · Accepted Answer

According to the statement, the two most deadly sources of indoor pollution are radon and cigarette smoke. Therefore, option D is the correct choice. A, B, C, and E are all incorrect as they do not match the given information.

In Industrialized Nations,the Two Most Deadly Sources of Indoor Pollution