What does this statement mean?
The earth is over 4.5 billion old and it took over 10-20 million years for its completion.
- Campbell HaydenLv 72 months agoFavorite Answer
The statement means that it took 10-20 million years
for the Earth to coalesce, remain stable by means of
its own gravity, and then cool down.
At that point it became a planet, and it
has remained a planet for more than 4.5 Billion years.
- CliveLv 72 months ago
It means what it says.
- Ronald 7Lv 72 months ago
It took that long to take the Scaffolding apart
It was that length of time that Earth had too cool down and form a crust