What Hypothesis Did Luis and Walter Alvarez Test in Relation

question 31

Multiple Choice

What hypothesis did Luis and Walter Alvarez test in relation to the mass extinction of dinosaurs 65 million years ago (MYA) ?

• A)The mass extinction 65 MYA was caused by a surge of catastrophic cyclones.
• B)The mass extinction 65 MYA was caused by a slow but steady increase in climate temperatures.
• C)The mass extinction 65 MYA was caused by an impact of an extraterrestrial object.
• D)The mass extinction 65 MYA was caused by the loss of preferred plants for food.

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Definitions:

Null

Typically refers to the null hypothesis in statistical analysis, which posits that there is no significant difference or relationship between specified populations, any observed difference being due to sampling or experimental error.

Assume

To accept something to be true without question or proof.

Research Hypothesis

A specific, testable prediction about the relationship between two or more variables that a researcher aims to investigate.

Purpose

The reason for which something is done or created or for which something exists.