The Most Likely Way Volcanic Activity Could Have Directly Contributed

question 5

Multiple Choice

The most likely way volcanic activity could have directly contributed to the Permian mass extinction is by ____.

• A) destroying habitat
• B) raising local temperatures
• C) inhibiting rain fall
• D) killing primary consumers
• E) releasing poisonous gases

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Definitions:

Standard Normal Variable

A random variable that has a normal distribution with a mean of zero and a standard deviation of one.

Random Variable

A variable whose possible values are numerical outcomes of a random phenomenon.

Standard Normal Variable

A normal random variable with a mean of zero and a standard deviation of one; used as a basis for comparison with other normal distributions.

Probability

A numeric expression ranging from 0 to 1 that indicates how probable an event is to take place.