What are earths four different eras?

Answer 1

'According to the common opinion of the Arabs, there are seven heavens, one above another, and seven earths, one beneath another; the earth which we inhabit being the highest of the latter, and next below the lowest heaven. The upper surface of each heaven and of each earth are believed to be nearly plane, and are generally supposed to be circular. Thus is explained a passage of the Koran in which is said that God has created seven heavens and as many earths or storeys of the earth. Traditions differ respecting the fabric of the seven heavens. In the most credible account, according to a celebrated historian, the first is described as formed of emerald; the second of white silver; the third of large white pearls; the fourth of ruby; the fifth of red gold; the sixth of yellow jacinth; and the seventh of shining light. Some assert Paradise to be in the seventh heaven; indeed, I have found this to be the general opinion of my Muslim friends; but the author above quoted proceeds to describe, next above the seventh heaven seven seas of light, then an undefined number of veils or separations of different substances seven of each kind, and then Paradise, which consists of seven stages one above another (these are distinguished by the names of precious gems) canopied by the Throne of the Compassionate. These several regions of Paradise are described in some traditions as forming so many degrees, or stages ascended by steps.'

'The earth is believed by the Arabs to be surrounded by the ocean, which is described as bounded by a chain of mountains called Kaf, which encircles the whole as a ring, and confines and strengthens the entire fabric; these mountains are described as composed of green chrysolite like the green tint of the sky. Mecca, according to some, or Jerusalem, according to others, is exactly in the centre. The earth is supported by successive creations one beneath the other. The earth is upon water, the water upon the rock, the rock on the back of the bull, the bull on the bed of sand, the sand on the fish, the fish upon a still suffocating wind, the wind on a vale of darkness, the darkness on a mist, and what is beneath the mist is unknown. It is believed that beneath the earth and the seas of darkness is Jahennem, which consists of seven stages, one beneath another.'

Answer 2

There are a number of stages that the earth has gone through in its evolution. The common stages are the various eras which include Hadean, Cambrian, Paleocene and the Galesian eras.

Answer 3

1.troposphere 2. stratosphere 3. mesosphere 4. thermal sphere

Answer 4

Precambrian Era

Paleozoic Era

Mesozoic Era

Cenozoic Era

Answer 5

what are the four stages of earths evolution

Answer 6

Yes they are safer due to the improvements in the shell design. You should always look for a FDA approved implant.

Answer 7

Crust, Mantle, Outer core, and inner core