问题详情

What is the evidence for the impact hypothesis？
A．The clay from the Cretaceous Period contains an element that is rare on Earth.
B．Both hemispheres suffered the same amount of damage and extinction.
C．Acidic precipitation is still not evenly distributed across the Earth.
D．Rocks that may have been part of an asteroid have been identified.请帮忙给出正确答案和分析，谢谢！