Current estimates are that life emerged on Earth between 3.5 and 3.8 billion years ago, but it may have emerged even earlier than that.
Life, according to our best hypotheses, emerged almost as soon as the conditions were favourable. Before that, the planet's surface was simply too hot, its atmosphere and surface conditions too corrosive. After all, the planet was still cooling down and outgassing following its coalescence from interplanetary debris.
The Earth has been habitable for living organisms for about 3.5 billion years.
No, volcanic rock is not living. It is formed from solidified magma and does not exhibit any characteristics of living organisms such as growth, metabolism, or reproduction.
Limestone is the sedimentary rock formed primarily from the accumulation of shell, coral, algal, and fecal debris produced by living organisms like mollusks, corals, and algae. It is the only rock primarily formed by living animals.
Earth's atmosphere formed around 4.5 billion years ago, shortly after the planet's formation. The early atmosphere likely consisted of gases such as hydrogen and helium, but has since evolved through volcanic activity and the presence of living organisms to the composition we see today.
Sedimentary rocks that are formed partially by animals and plants are called organic sedimentary rocks. These rocks are formed from the accumulation and lithification of the remains or traces of once-living organisms. An example of an organic sedimentary rock is limestone, which is formed from the accumulation of marine organisms' shells and skeletons.
The first known living organisms on Earth were likely single-celled prokaryotes, such as bacteria and archaea, which appeared around 3.5 billion years ago. These simple organisms were among the earliest forms of life to emerge on our planet.
Any link of uranium with the living organisms.
The Earth has been habitable for living organisms for about 3.5 billion years.
a
Dead organisms that were living million / billion/S of years ago.
A fossil fuel is a natural fuel such as gas or coal. It is formed from living organisms remains.
Different parts of living organisms are formed as the genetic information is read. This controls how and when various parts are constructed as the organism develops.
sedimentary rock
Fossil Fuels =)
Fossil Fuels =)
Ecosystem
No, volcanic rock is not living. It is formed from solidified magma and does not exhibit any characteristics of living organisms such as growth, metabolism, or reproduction.