If an impact crater on Earth is 2000 m wide, approximately how big would the asteroid fragment have been that survived its passage through the atmosphere?
A)20 m
B)100 m
C)2000 m
D)4 km

Question

Quizplus · Accepted Answer

According to the known impact crater size versus asteroid size relationship, the diameter of the asteroid fragment that would create a 2000 m wide crater on Earth would be approximately 10 times the diameter of the crater, which is 200 m. However, not all of the asteroid survives the passage through the atmosphere, so the size would be reduced further. Therefore, the closest answer is B - 100 m.

If an Impact Crater on Earth Is 2000 M Wide