The mass extinction in the geologic record, which proved to be the most devastating to life on Earth, occurred at the
end of the ____.
a. Cambrian
b. Cretaceous
c. Devonian
d. Ordovician
e. Permian
e
You might also like to view...
Which of the following is NOT an intrusive volcanic landform?
a - dike b - batholith c - sill d - vein e - caldera
Explosive volcanoes that cause death and destruction are more likely to be composite cone volcanoes
Indicate whether the statement is true or false.
Large-scale ________ of Earth materials will be required to meet future resource demands
Fill in the blank(s) with correct word
If all of the stratospheric ozone suddenly disappeared, ________
A) plants would flourish B) insects would be the only organisms to survive C) Earth's surface would warm considerably D) there would be a dramatic decrease in skin cancers E) most life on Earth would cease to exist because of the amount of UV radiation penetrating the atmosphere