Thermal Convection Movement in the Upper Mantle

question 12

Multiple Choice

Thermal convection movement in the upper mantle

• A)generates the electric current that powers Earth's magnetic field.
• B)greatly influences Earth's surface features.
• C)heats Earth's core by frictional forces.
• D)is usually negligible.

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Definitions:

Genetic Diversity

The total number of genetic characteristics in the genetic makeup of a species, contributing to variations among individuals and populations.

Neoteny

The retention of juvenile features in the adult animal, a phenomenon observed in some species which results in adult individuals retaining traits typically only seen in juveniles.

Vaulted Cranium

Refers to skulls with a rounded shape due to the overarching structure of the cranial vault, a characteristic feature of human evolution.

Upright Mobility

The ability to move or walk in an upright position.