Scientists Are Generally Are Not Involved in Research Dealing with the Possibility

question 63

Multiple Choice

Scientists are generally are not involved in research dealing with the possibility of alien visits to Earth because

• A) they are simply not interested in the subject
• B) they have been told not to study this subject by military intelligence
• C) there is a lack of evidence to suggest there is anything to study
• D) it is already well known that aliens are visiting the Earth

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Definitions:

Slab Pull

A mechanism that contributes to plate tectonics, involving the subduction of oceanic plates pulling the trailing lithosphere into subduction zones.

Asthenosphere

The upper mantle's region directly beneath the lithosphere, characterized by high viscosity, mechanical weakness, and ductile deformation.

Oceanic Lithosphere

The rigid outer layer of the Earth under the ocean basins, composed of the crust and upper mantle that is specifically associated with oceanic regions.

Ridge Push

A tectonic process driven by gravitational forces that cause the spreading of the seafloor away from oceanic ridges.