blank 1* is a yellow brown haze that forms when sunlight reacts with air pollution. Breathing.*blank 2* people with respiratory diseases may need to limit their outdoor activities. can cause respiratory disease. When is heavy *blank 3*

Question

A second hand smoke

B dust

D carbon monoxide

D smog

Using the options above fill in the blanks

If needed use the same word twice

Answer 1

1. Smog
2. People
3. Smog

So the completed sentences are:

"Smog is a yellow brown haze that forms when sunlight reacts with air pollution. Breathing smog can cause respiratory disease. People with respiratory diseases may need to limit their outdoor activities when there is heavy smog."