Fact 1: Head hair is especially important in preventing heat loss from the body.

Fact 2: Almost 90 percent of the body's heat loss is from the head.

Given the two facts above, answer the question "What can prevent 90 percent of the body's heat loss?" with the following options: 
- Masks
 - fur
 - coats
 - bald head
 - increase body fat
 - sweaters
 - skin
 - hair


 

        hair 