Answer:
I would say stretching everyday. That is what makes more sense to me, but I could be incorrect.
Explanation:
If a person wasn't doing much physical activity before, I doubt they could just get up and do things two - four times a week. But, I also don't know your material.
Answer:
37.2 trillion cells
Explanation:
Each cell has their own structure and function. This allows them to duplicate its contents and chromosomes and split into 2 to produce another cell during mitosis
Answer:
Regular physical activity helps improve your overall health, fitness, and quality of life. It also helps reduce your risk of chronic conditions like type 2 diabetes, heart disease, many types of cancer, depression and anxiety, and dementia.
Explanation:
Factories, smoking, cars, littering
