One Important Hypothesis About the Cause of the Recent Ice

question 30

Multiple Choice

One important hypothesis about the cause of the recent Ice Age involves:

• A) astronomical hypothesis
• B)burning of fossil fuels such as coal by prehistoric Indians reduced insolation
• C)the weight of the continents flipped the earth over and caused a climatic chain reaction
• D)vegetation became lighter in color and absorbed less energy

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Definitions:

API Gravity Degrees

A measure used in the petroleum industry that expresses the density of petroleum liquids relative to water; higher API gravity indicates a lighter oil.

Standardized Residuals

The differences between observed and predicted values, scaled by an estimate of standard deviation.

Covariances

A measure of the degree to which two variables change with respect to each other, indicating the direction of their linear relationship.

Regression Analysis

A statistical method used to examine the relationship between a dependent variable and one or more independent variables.