D. 20,000 times longer
To find the answer, simply divide the number of years dinosaurs have been extinct by the number of years Neanderthals have been extinct:
(6.5 x 10^7 years) / (3.0 x 10^4 years) = 2166.67
So, dinosaurs have been extinct approximately 2167 times longer than Neanderthals. This is closest to 20,000 times longer.
Dinosaurs have been extinct for about 6.5 x 10^7 ears, while Neanderthals have been extinct for about 3.0 x 10^4 years. About how many times longer have dinosaurs been extinct than Neanderthals?
A. 1,000 times longer
B. 2,000 times longer
C. 10,000 times longer
D. 20,000 times longer
1 answer
1 answer