Scientists believe that the Earth's average temperature has been more or less the same for the last million years.
There have been "ice ages" in this time, with average temperature dropping
by a few degrees.
Of course, the local effect of an "ice age" in certain places was huge.
Most certainly. They've been happening since the crust formed.
According to my calculations i have found out that plate tactonics has been around for a good 500 million years.
I have stopped counting, but four of his works have been sold for over 50 million dollars.
6 million
Two of his paintings have been sold for more than $ 70 million.
according to some writers, they've been here for about 400M years.
How long have turtles been on the Earth? They have been around for 300 million years.
trees have been aroun for 49 million years
Sharks have been around for about 409 million years but before they evolved they were around for 890 million years.Sharks have been around for about 409 million years but before they evolved they were around for 890 million years. TRUE!Over 400 million years!Shakrs have been alive for a very long time. They have swam the waters of earth since about 409 million years ago. This period of time was before our first dinosaurs came to be infact.
From 225 to 65 million years ago 225 million - 65 million = 160 million BC So that means dinosaurs have been on the earth for 160 million years.
65 Million years
The last one was called Pangea about 300 million years ago, but there have been several before that. Earths life is about 4.5 billion years old and so has gone through many cycles of supercontinents, the one before Pangea was called Pannotia 600 million years ago and before that Rodinia.
450 million years
They have been around since the days of the dinosaurs, millions of years ago.
about a million years
Dinosaurs have been extinct for approximately 65 million years. Humans shared a common ancestor with monkeys about 6 million years ago, however Humans as such have only been around for roughly 40 thousand years.
It would have been 149,997,988 years BC (in 2013). But, assuming that 150 million is, at best, accurate to the nearest million years, for all intents and prposes, the answer should be 150 million years BC.