If Australia is moving about 2cm/ year and was drifted from the ridge by 1000km, how long ago was it when Australia was near the ridge?
A.)50 million years
B.)10 million years
C.)500 million years
D.)cannot be predicted


Sagot :

Answer: D. It cannot be predicted. Australia is moving too fast that the GPS can no longer keep up.

Explanation: Australia has tended to move particularly fast due to its unique geology. Though, in 1994 in the “Times” report its last adjustment was about 656 feet.