You'd have to estimate from approximately when Earth was formed. You'd also have to decide at what point Earth became Earth. First is was a ball of magma, then it hardened, then the sky was red, then life began to form, then the sky turned blue, the first ce age occured, etc.
During the recent ice age, glaciers covered almost 30 percent of earths land.
The generally accepted figure is between 4.5 and 4.6 billion years.
middle age
Not enough information. You can't calculate the age, based only on the distance.
it means that you have to calculate the age of a person, not in years, but in minutes.
Ice age
because the moon formed before the age of mammals.
it is an online tool that helps users calculate their age accurately and automatically
superposition a&c- Jackie
Secured their food
counting the annual rings
r052106