Question

Which statements describe the effects of indoor pollution? Select two options.

1. Ultrafine particles cause poor health.

2. Nose hairs and mucus catch all the particles before they reach the lungs

3. Ultrafine particles are absorbed by the lungs when people breathe.

4. Ultrafine particles contribute to more than 20,000 deaths per year in the United States.

5.Most ultrafine particles can be seen with the unaided eye.

Answer 1

The answer is 1 and 3/a and c.

Step-by-step explanation:

It is right on edge/time4learning.

Have a good day:)

Answer 2

I would go with 1 and 4

Explanation

The presence of ultrafine particles (PM0.1) in large numbers in the air poses a health risk. They usually enter the body through the lungs, but they can translocate to almost any organ. When compared to fine particles (PM2.5), they cause more pulmonary inflammation and are retained in the lung for a longer period of time.