.02 million years ago
2.0x10-8
20000 years ago
why as it so cold in the UK 200000 years ago
There were no cities millions of years ago.
Year 17990 BC.
20000 years ago
Yes.
millions and millions of years ago
it would be around 650 millions of years ago
Nothing. While limestone existed millions of years ago there were no people to give it a name.
how were the salt mines formed millions of years ago.
Millions of years ago .
ma in this context means "millions of years ago".