Fact 1: Skin is used for protecting the body from harmful substances.

Fact 2: Contamination is the unintended presence of harmful substances or microorganisms in food.

Given the two facts above, answer the question "What does the skin protect the body from?" with the following options: 
- cigarettes
 - pain
 - discoloration
 - sun's heat
 - disease
 - blood
 - rays or beams
 - contamination


 

        contamination 