Paleozoic Era was known to be the 'age of ancient life'.
~Happy Studying! ^-^
1- Because its inexpensive, fast, and REALLY good. Especially used since there is coved.
2- Say if you use a phone as a map, it shows where it is, how far, and the time limit. It can also be known as landmarks if there is only one in a certain area and that is very well know.
Hope this Helped! :T
well some word like dog-food and cat-fish
are named by their looks, feel, or even what they are used for.
It would be water definitely oil is very prevalent in these areas!
diseases getting sick contaminated water in and I've been habitable enough to drink