Which Was Not Initially an Important Form of Evidence Used

question 50

Multiple Choice

Which was not initially an important form of evidence used in support of the theory of plate tectonics?

• A)mid-ocean ridges
• B)chemical composition of lava from volcanoes
• C)magnetic reversals in crust on the seafloor
• D)age of the seafloor crust

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Definitions:

Control Group

A group in an experiment that does not receive the treatment and is used as a benchmark to measure how the other tested subjects do.

Anxiety

A feeling of worry, nervousness, or unease, typically about an imminent event or something with an uncertain outcome.

Independent Variable

In an experiment, the variable that is manipulated or changed to observe its effect on the dependent variable.

Sweets

Food items that are rich in sugar and often used as a treat or dessert.