The System of Raised Dots Used by Many Blind and Visually

question 8

Multiple Choice

The system of raised dots used by many blind and visually impaired individuals to read was invented by

• A) Helen Keller.
• B) Charles Barbier.
• C) Samuel Perkins.
• D) Louis Braille.

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Definitions:

Synthesis

The process of combining different entities to form a new, complex product, often used in the context of chemical synthesis.

Organic Product

A compound or substance produced from an organic reaction, typically containing carbon atoms bonded to hydrogen, oxygen, or other atoms.

Reaction

A process in which one or more substances are changed into one or more new substances through the reorganization of molecular or ionic structures.

Major Organic Product

The primary product of a chemical reaction, typically formed in the greatest amount compared to other products.