Answer:
Primary health sources is like magazines newspapers etc.
Secondary health sources is government departments, organizational records and data that was originally collected for other research purposes.
Explanation:
A liver has to work 24 hours a day because the body cannot function
Sedentary activities would be sitting down, and being a couch potato
So the main difference in the 4 answer choices would be that 1 is sitting down
And the other 3 would be moving around.
Jogging (moving around)
playing video games (sitting down)
playing basketball (moving around)
riding your bicycle ( moving around)
the answer is video games!
Good Luck! :)
Physical activity is helpful for your heart muscle and also strengthens your immune system also good for your lungs and helps maintain your weight <span />