std's are caused by an infection called trichomoniasis which is caused by parasites which then causes std's
Explanation:
law against smoking in public places
Answer:
I think if you're on here, you're in class or doing homework!
Oxygen and Carbon Dioxide
Diseases, mainly autoimmune, depression, anxiety, a sickness such as a cold or fever, or even just a lack of motivation not linked to depression can be reasons people decrease their physical activity level.
