Precambrian time, period of time extending from about 4.6 billion years ago (the point at which Earth began to form) to the beginning of the Cambrian Period, 541 million years ago. Precambrian time encompasses the Archean and Proterozoic eons, which are formal geologic intervals that lasted from 4 billion to about 541 million years ago, and the Hadean Eon, which is an informal interval spanning from 4.6 billion to 4 billion years ago. The Precambrian represents more than 80 percent of the total geologic record.
<span>Seneca Falls, New York</span>
d. He told Coronado to be slow and cautious about approaching the Natives.
Answer:
The Oregon Trail was a roughly 2,000-mile route from Independence, Missouri, to Oregon City, Oregon, which was used by hundreds of thousands of American pioneers in the mid-1800s to emigrate west.
Explanation:
The RAF had over 50 radar stations across Britain which could find out about future attacks before the German aircraft managed to reach the coasts of Britain. This enabled them to prepare counter-attacks and their defense and ultimately rendered the German airforce completely useless. This is why Germans never managed to conquer the island.
