how could there be life on earth about millions of yrs ago?

Question

the sun burns off about 5million tonnes of mass every second, the diameter shrinks about 5 feet per hr. goin back millions of yrs the wouldn't the gravity of the sun pull in the earth or at least make the temperature on earth to hot for leaving things?

Answer 1

Not according to the physical evidence.

Answer 2

We find fossils and we can do carbon dating and radio isotopes to prove that life did indeed exist on Earth many, many millions of years ago. The Earth and the Sun formed at about the same time 4.56 billion years ago. First, remember that the Sun is extremely large (863,190 miles in diameter) in relation to Earth (7,926 miles). Given that the sun burns off about 5 feet per hour of its diameter, it would takes billions of years for any noticeable difference. When the Earth and Sun first formed 4.56 billion years ago, Earth was a bit warmer than it is today. Our Sun has been burning in its main sequence (converting hydrogen to helium) stably for billions of years and will do so for about 5 billion years to come. In conlusion, the Sun's gravity wasn't so much greater in the past so that it would pul Earth into it. My prooof is that we are still here.

Answer 3

Life has been about on Earth for several billion years.

Its great trick that kept it here is inheritable adaptability preferentially selected for by survival of the fittest - or evolution.

Evolution is shockingly efficient at allowing living organisms to adapt to radically changing environments. It was indeed much, much hotter at times in the past, and the atmosphere was very, very different - we certainly could not live in it.

Answer 4

maybe it pulled us closer, not in, and maybe as it shrunk the earth cooled down

Answer 5

Then howcome we all are alive today?

Answer 6

this question is still debatelbe. so you may get may answers.

Answer 7

check out......
http://en.wikipedia.org/wiki/Origin_of_life

...hope this helps.

Answer 8

no,