Healthcare and Wellness Quiz

1. What is the recommended amount of water to drink daily for optimal hydration?
   A) 2 liters
   B) 4 liters
   C) 8 glasses
   D) It varies for each person
   
2. Which nutrient is essential for building and repairing body tissues?
   A) Carbohydrates
   B) Protein
   C) Fat
   D) Vitamins
   
3. What is the main function of the cardiovascular system?
   A) Transportation of oxygen and nutrients
   B) Regulation of body temperature
   C) Digestion of food
   D) Production of hormones
   
4. Which activity is considered an aerobic exercise?
   A) Weightlifting
   B) Swimming
   C) Yoga
   D) Stretching
   
5. What is the recommended amount of physical activity for adults per week, according to health guidelines?
   A) 30 minutes
   B) 1 hour
   C) 2 hours and 30 minutes
   D) 5 hours