Records of Extinctions on the Planet Indicate That

Multiple Choice

Records of extinctions on the planet indicate that

A) although Earth has experienced five mass extinctions,the diversity of life appears to be greater now than ever before.
B) mass extinctions on the planet have caused a steady decline over hundreds of millions of years,both in the numbers and abundance of species.
C) mass extinctions have caused the number of predator genera to decline over time.
D) extinction rates are highest when global temperatures are lower.