What zone is point b located in ?
a. the polar zone
b. the tropics zone
c. the temperate zone
d. the moderate zone

I think either c or d hope this makes it easier. :)

The Answer is C . The Temperate Zone

Explanation:

I took the test and got that right!

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.