Why do some geologists believe a meteorite impact was not the sole cause of the extinction event at the end of the
Mesozoic?
a. Iridium is not always found at the boundary between Cretaceous and Paleogene rocks.
b. Meteorite impacts cause local extinctions, not global extinctions.
c. The meteorite hit at the end of the Jurassic, while extinctions occurred throughout the Cretaceous.
d. The location of an impact crater has not been discovered, and likely never will be.
e. Terrestrial and marine extinctions have not been shown to occur at the same time.
e
You might also like to view...
Describe the major factors that influence the process of change during primary succession on bare rock exposed by a retreating glacier
What will be an ideal response?
When the concentration of a reactant is decreased which of the following is true?
A) The rate of reaction always decreases. B) The rate of reaction usually decreases. C) The rate of reaction always increases. D) The rate of reaction usually increases.
Clusters of asteroids such as the Apollos have orbits that intersect Earth's orbit.
Answer the following statement true (T) or false (F)
Define air mass. What is air-mass weather?
What will be an ideal response?