Answer:
age - 4.571 billion years (about).
why does it spin so fast - Essentially, the Earth spins because there is no force out there in the solar system to stop it from spinning. It all goes back to the way that the Earth was formed in the first place.
the use of introductory and concluding paragraphs
Explanation:
A. Josephine, Louise Mallard, Richards, and Brently Mallard.
