Answer:
3
Explanation:
Vaccines protect travelers from serious diseases. Depending on where you travel, you may come into contact with diseases that are rare in the United States, like yellow fever. Some vaccines may also be required for you to travel to certain places.
B. Increase interest in life
0ne is C because cardiovascular is in that area
I'd say true. Because when the environments are harmed by pollution and toxic gases mother nature and its Inhabitants are hurt and or can me killed