The Precise Cause of ADHD Is

question 49

Multiple Choice

The precise cause of ADHD is

• A)heredity.
• B)environment.
• C)neurological.
• D)unknown.

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Definitions:

Snap Rings

Circular, semi-flexible metal rings with open ends that fit into grooves and are used to secure components on shafts or in housing.

Gasket-Type Seals

Devices designed to prevent the leakage of fluids between two surfaces by filling the space between them, typically made of flexible materials.

Trapezoidal

A shape or form characterized by a four-sided polygon with at least one pair of parallel sides.

Cross Section

A view or drawing that shows what the inside of something looks like after a cut has been made perpendicular to its axis.