EVOLUTION
THE ORIGIN OF LIFE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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hot with volcanic activity and electrical storms
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dry land covered with volcanic dust
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cold oceans
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dark and dusty with abundant water
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Detailed explanation-1: -Earth’s earliest climates, before 4000Ma, reflected a relatively faint young Sun and a soupy greenhouse atmosphere rich in dust and gas, such as CO2 and NH3, generated by asteroid impacts, magmatic degassing, and high radioactive heat flux.
Detailed explanation-2: -The way that the Earth was formed (fusion) is a very hot and radioactive process. The Earth formed the same way a star forms but because it was on a much smaller scale it was much quicker. Atoms fusing from hydrogen to helium to lithium etc. all the way to iron (Earth’s core is iron) released a lot of radiation.
Detailed explanation-3: -The early Earth was very different from our Earth today. The early Earth experienced frequent impacts from asteroids and meteorites and had much more frequent volcanic eruptions. There was no life on Earth for the first billion years because the atmosphere was not suitable for life.
Detailed explanation-4: -Which statement describes a process involved in the evolution of Earth’s early atmosphere? Cyanobacteria transformed carbon dioxide in the atmosphere into oxygen during photosynthesis.