Many scientists think the sun and the rest of the solar system formed from a giant, rotating cloud of gas and dust known as the solar nebula. As the nebula collapsed because of its gravity, it spun faster and flattened into a disk. Most of the material was pulled toward the center to form the sun.
Answer:
definitely False
Explanation:
A megalopolis contains more than one metropolis
The answer is B. Switch a car that gets 30 miles per Gallon
Therefore, there will be less emission/pollutant produced by the car. The price will be likely to be more expensive though
