Early in the history of geology, scientists debated two different views of how geologic processes work. these two ideas became known as uniformitarianism and catastrophism. which of the following correctly describes the view of catastrophism?
a.) geologic changes only occur in sudden, devastating events.
b.) geologic changes only occur because of slow, gradual processes.
c.) geologic changes can be either sudden or gradual.
d.) geologic changes can quickly change earth's structure.

An insurance company wants to know if the average speed at which men drive cars is higher than that of women drivers. the company took a random sample of 27 cars driven by men on a highway and found the mean speed to be 72 miles per hour with a standard deviation of 2.2 miles per hour. another sample of 18 cars driven by women on the same highway gave a mean speed of 68 miles per hour with a standard deviation of 2.5 miles per hour. assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations.

Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.