Answer: The Precambrian Era comprises all of geologic time prior to 600 million years ago.
Explanation: The Precambrian was originally defined as the era that existed before the emergence of life in the Cambrian Period. It is known that life on Earth began by the early Archean and that fossilized organisms became more and more abundant throughout Precambrian time.
An example is the president vetoing a law that Congress passes. He can refuse to sign a bill.
Definition, Location, Example
The Corn Belt,is an area in the midwestern United States, roughly covering western Indiana, Illinois, Iowa, Missouri, eastern Nebraska, and eastern Kansas, in which corn and soybeans are the dominant crops ("Corn Belt Region").
