What Evidence Is There That Plate Tectonics May Have Occurred

question 196

Multiple Choice

What evidence is there that plate tectonics may have occurred in very early times on Mars?

• A) Magnetic fields at the surface of Mars show interlocking patterns similar to those in regions where plates are separating on Earth.
• B) There are several highly eroded systems of folded mountain ranges and linear troughs on Mars, similar to regions of plate collision on Earth.
• C) "Fossilized" rift valleys have been discovered by ground-penetrating radar under the blanket of dust and lava of Mars's surface.
• D) Interconnecting patterns of strike-slip faults in the volcanic northern hemisphere of Mars are similar to those where tectonic plates are sliding past each other on Earth.

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Definitions:

Environmental

Pertaining to the surrounding conditions or factors that influence or affect life and development.

Genetic

Pertaining to genes and heredity, explaining how traits and characteristics are passed from parents to offspring.

Contingency

A term used to describe the relation between behaviors and their antecedents and consequences.

Behavior

The observable actions or responses of individuals or groups to internal stimuli or external environments.