What did earth look like 4.6 billion years ago?

Answer 1

The early Earth was a toxic wasteland devoid of all life. After the crust cooled and began to solidify, volcanoes spewed poison gases, methane and ammonia into the atmosphere. As water vapor began to collect from Earth's interior and from space, weather started. Thunderstorms began to fire up and boiling hot, highly acidic rain began to fall for millions of years. During this time the water collected in the low areas and formed the early oceans. Lightning started a series of chemical reactions converting Ammonia (NH4) into Nitrogen and Methane (CH4) into CO2 when combined with water. Most of the Hydrogen drifted off into space. About 3.5 billion years ago, life arose as single celled plant life called algae. This blue-green algae began to use CO2 from the atmosphere for photosynthesis and released copious amounts of O2 leading to our modern atmosphere.

Answer 2

Almost like today, but there was only 1 united continent. Those separated later due to an event that happened (not going to speak about that). this answer is SO wrong the continent they are referring to is called Pangaea and Pangaea was formed not until the late Paleozoic period which was only 248 million years ago NOT 4.6 BILLION years ago i don't know the answer to your question but i can tell you there answer is defiantly not it(maybe you shouldn't speak about anything.)

Answer 3

4.5 billion years ago puts the Earth in its very early stages. The entire planet was most probably still molten with no atmosphere and under constant bombardment by material that remained from the formation of the solar system. By 3.5 billion years ago, Earth had formed a crust, the oceans had formed, and an atmosphere with almost no oxygen existed. Volcanic activity was extremely high and the lack of an ozone layer meant that ultraviolet radiation from the sun was intense. The largest lifeforms at this time were single celled bacteria. No plants existed. No multicellular animals.

Answer 4

No, the earth billions of years ago. wasent a jungle. If you think about it.. how could trees live in a toxic wasteland made out of around 97% rock, how could trees live there? all it was, was a wasteland mostly rock, where nothing could survive. if you want to know more just watch the documentarys on the weekend (They are very useful if you want to fins out)

I'm only a 14 year old kid but I know. Thanks.

Answer 5

Let's see here, the age of Earth, 4.5 Billion Years ago. So divide that 2 to get 2.0. This is the time when Earth begin to have an atmosphere and obtained and created oxygen and when Water dominated the World. Nearly the time organisms begin to evolve.

Answer 6

The answer is: not much different to the previous billions of years. The atmosphere consists mainly of CO2 and water vapour from the volcanoes, as well as high quantities of toxic ammonia and other various gases. The earth's surface was littered with volcanoes, and as a result it was inhospitable and lifeless (and very hot)

However, this is believed to be the beginning of plant life, so quickly after this, the earth starts to change. Oxygen appears, which previously had not existed. Liquid water is formed. All of this is only possible because over the previous billions of years, the Earth had cooled and no longer had an excessive amount of heat to lose.

Answer 7

The earth was in the forming phase some 4 billion years back. The surface of the earth would have been molten, the oceans would not have formed yet, and the atmosphere would have been mostly carbon dioxide and nitrogen.

Answer 8

The current best scientifically derived estimate for the age of the Earth and our solar system is approximately 4.57 billion years. As such the time you specify was approximately 1 billion years prior to this. It is thought that what would become our solar system was what is known as a molecular cloud. This is a region of space with a higher than average concentration of plasma or gas. In this case it is thought that a supernova caused density contrasts in this cloud where the regions with elevated density eventually coalesced to form stars (for example our sun).

As such what would become Earth was a cloud of dust and gas!

Answer 9

it was one huge continent called Pangea. Over the years they plates broke and moved. Because of "Plate Tectonics", the land has moved causing the continents and land we have today.

Answer 10

What would become Earth was part of a cloud of gas and dust. Earth would not form until about a billion years later.