That looks like Pseudostratified Columnar. Could be wrong but I'm 95% certain.
Hope this helps
Answer:
Eating high-fat foods every day at lunch is an example of cumulative risks.
Hope this helps
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.