You discover an impact crater that is 10 kilometers across.Which of the following can you conclude?

Question

Quizplus · Accepted Answer

The size of the impact crater is typically much larger than the size of the impacting object. For craters on Earth, the object that causes the crater is usually about 1/10th to 1/20th the size of the crater itself. Therefore, a 10-kilometer crater would more likely be created by an object about 1 kilometer across, not one that is the same size as the crater. The age of the crater (options B and C) cannot be determined solely based on its size, and there's no direct correlation between the size of the crater and the age of its formation.

You Discover an Impact Crater That Is 10 Kilometers Across