How many levels of full body protective clothing are there? a. four b. seven c. six d. two

What are three important public health tools for addressing heart disease? identify the tools, and explain why they are a benefit to public health. you! : )

What is one way that cold and flu viruses spread? a. by transfusing contaminated blood b. by inhaling contaminated droplets c. by eating contaminated meat d. by drinking contaminated water

Building muscle has which of the following effects? it increases the metabolic rate. it relieves pressure on the joints. it slows weight loss considerably.