D. 20,000 times longer
Calculations:
6.5x10^7 / 3.0x10^4 = 2166.67
Since we are looking for how many times longer dinosaurs have been extinct than Neanderthals, we will round up to 20,000 times longer.
Dinosaurs have been extinct for about 6.5x10^7 years, while Neanderthals have been extinct for about 3.0x10^4 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