Fact 1: Poison causes harm to living things.

Fact 2: Arsenic compounds are poisonous.

Given the two facts above, answer the question "What can cause harm to living things?" with the following options: 
- bacteria
 - cigarettes
 - Pesticides
 - toxins
 - steroids
 - amoebae
 - leeches
 - Arsenic


 

        Arsenic 