4. your ability to steer a vehicle depends partly upon the condition of the vehicle's suspension.
a. true
b. false

THe answer is true

Explanation:

True

Explanation:

If your suspension is not working properly your tires will not function as well and it can become difficult to steer

what's the question ?

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.