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Taking Only What Is Needed and Replacing What Is Used

question 16

Multiple Choice

Taking only what is needed and replacing what is used most clearly reflects the indigenous ecological theme of __________.


Definitions:

Sulfur

A yellow, nonmetallic element that exhibits a characteristic smell and plays a vital role in the chemical industry.

Antimony

A brittle, lustrous gray metalloid used in alloys, flame retardants, and electronics, represented by the symbol Sb and atomic number 51.

Silicon

A chemical element with symbol Si and atomic number 14, known for its semiconductor properties in electronics.

Metals

Elements that are typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity.

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