Answer:

What do you Observe With the Picture? They are sick

What do the Pictures Have in Common? They are ill

What to do Prevent in From Happening? Eat vegetables, Exercise, eat vitamins

Answer:

1. they're all sick

2. they're all pain

3. Eat healthy food and take vitamins to strengthen resistance and of coure get proper sleep

Hope it Helps you☺️

Explanation:

This is just my Opinion.