Question

If a researcher finds that there is a correlation between secondhand smoke and children's asthma, he knows for sure that _____.

Answer 1

The answer is c, they are connected.

Answer 2

Answer: d. secondhand smoke causes children's asthma

Explanation:

The second hand smoke is the smoke that is produced during indoor smoking. Children who breath in the secondhand smoke can have more frequent and severe attacks of asthma. These children are also susceptible to diseases such as pneumonia, bronchitis, poor functioning of the lungs and other problems related to breathing.