Answer:
I save lives on the ground and in the air. What am I?
I am a mother from a family of eight. Spins around all day despite my weight. Had a ninth sibling before founding out it's fake.
There's not a kingdom on the earth I haven't traveled over and over and though I know not whence my birth yet when I come you know my roar. I through the town do take my flight and through the fields and meadows green and whether it be day or night I neither am nor can be seen.
I tremble at each breath of air, and yet can heaviest burdens bear. What am I?
Although it sounds like I work on a transportation device I actually work in a restaurant.
Give it food and it will live, give it water and it will die.