The Surfaces of the Inner Planets of Our Solar System

question 97

Multiple Choice

The surfaces of the inner planets of our solar system seem to be composed of

• A) gases.
• B) frozen water.
• C) frozen carbon dioxide.
• D) molten lava.
• E) mineral matter.

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Definitions:

Adaptive Value

The extent to which a trait or behavior enhances an organism's chances of survival and reproduction in its environment.

Independent Variable

The factor proposed to change the behavior under study in an experiment; it is systematically manipulated during an experiment.

Experimental Research

A research design that permits inferences about cause and effect by exerting control, systematically manipulating a variable, and studying the effects on measured variables.

Control Group

In experimental research, the group of participants that does not receive the experimental treatment, used for comparison purposes.