What is the least amount of time listed that is sufficient to benefit from cardio exercise?
a) 10 minutes
b) 20 minutes
c) 30 minutes
d) 40 minutes

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! : )

In 2009, 40% of all bicyclist fatalities occurred when the bicyclist, the driver, or both vehicle operators were

What is the main difference between trace elements and the main elements that make up the body? 1) main elements consist of heavier atoms. 2) trace elements are only needed in small amounts. 3) trace elements consist of heavier atoms. 4) main elements are only needed in small amounts.