Dinosaurs have been extinct for about 6.5 x 10 7 years, while Neanderthals have been extinct for about 3.0 x 10 4 years. About how many times longer have dinosaurs been extinct than Neanderthals?

Question

A.

1,000 times longer
B.

2,000 times longer
C.

10,000 times longer
D.

20,000 times longer

Answer 1

C. 10,000 times longer.

Calculations:
6.5 x 10^7 / 3.0 x 10^4 = 21,666.6666667.
Rounded to the nearest whole number, this becomes 10,000 times longer.