the earth has been existing for billions years. Just because it is 2010, doesn't mean that's how old it is. I believe the earth has been around for millions, billions of years!:)
The Earth has been habitable for living organisms for about 3.5 billion years.
I am a digital assistant and do not physically exist on Earth.
Humans have been on Earth for approximately 0.2% of Earth's history, which is estimated to be around 4.5 billion years. This means humans have been around for about 200,000 years.
forever it was on earth when the earth was made
Modern humans, or Homo sapiens, have been on Earth for about 0.2% of Earth's history, which is approximately 200,000 years. Earth is estimated to be around 4.5 billion years old.
Ever since mankind came into existance, same as animals and birds and fish.
Take whatever you believe to be the time that humankind came into existance, then substitute that number for your answer.....
how long has archaebacteria been on earth? how long has archaebacteria been on earth?
they have been on the earth for along time
There isnt an exactly existance on any other planet than Earth
Postal services have been in existance for many centuries. The Romans would send messengers long distances. The Incas had a systerm of runners to deliver messeges.
They have been on earth since 190 million years ago.
long time
A very long time.
for as long as it has had continents
i have been on this earth for 8 years
Well it depends on what you mean. The distance for how long it takes, or the time as in how long since Earth was made. Earth as you know has been here a long long time. Stars light has been shinning towards Earth eversince it was made. To see how long it takes for a stars light to reach Earth depends on how distant and huge the star is.