Best Answer: Hi, Answer: estÃ¡ means is. Comments: There are two words for is in Spanish: estar and ser. EstÃ¡ is the third person singular, present indicative ...
The Largest division in the geological time scale is the Precambrian Era.It lasted from around 4.6 billion years ago to 570 million years ago.
Join us! Geologic time is divided into units based upon types of ____. a. sedimentary rocks c. organisms b. climatic changes d. igneous rocks. Answers.