Currently, the Cause of Attention-Deficit/hyperactivity Disorder Is Thought to Be

question 98

Multiple Choice

Currently, the cause of attention-deficit/hyperactivity disorder is thought to be ________.

• A) arrested emotional development
• B) biological factors
• C) prenatal maternal alcohol use
• D) over demanding and emotionally detached parents

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Definitions:

Intermittent Fillet Weld

A type of weld where continuous fillet welds are interrupted at regular intervals, used to join structural components while saving on material and reducing weight.

Supplementary Symbol

A symbol added to the basic nomenclature or notation in technical drawings, providing additional information about the feature or dimension it accompanies.

Basic Weld

A fundamental welding process where two metal pieces are joined together by melting their adjoining surfaces with or without using a filler material.

Complementary

Describes angles, components, or features that together complete or enhance each other, often used in design to ensure compatibility or efficiency.