What two events likely caused the extinction event at the end of the Cretaceous?

A. a massive fall in sea level and volcanic eruption
B. an ice age and asteroid impact
C. the evolution of mammals and an ice age
D. a global fire and related fireball impacts
E. an asteroid impact and massive flood basalt eruption


Answer: E

Environmental & Atmospheric Sciences

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Fill in the blank(s) with correct word

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As an ice sheet recedes and its weight on the land is removed, the land surface sinks downward by the process of isostatic rebound

a. True b. False Indicate whether the statement is true or false

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