Answer:
C. They are energy being transferred through matter or space.
Explanation:
Waves which are ripple effect gotten when a matter is subjugated to vibration is common among the various medium such as water or spring. This ripple effect happens to be energy which moves from region where it is generated and spread outwards towards regions where is not felt.
<em>Example is a stone dropped in the middle of the water. It (water wave) spreads from the middle towards the outer part of the container which houses the water.</em>
<span>Stressed freedom and civil rights for all; leader of Jewish Enlightenment movement known as Haskalah; advocated for these freedoms and civil rights because European Jews had few, if any, legal rights; known for his toleration.</span>
Nationally recognized testing laboratories (NRTL) <u>test and list</u> electrical products to provide a basis for approval by inspectors in the field.
An independent organization known as a Nationally Recognized Testing Laboratory (NRTL) certifies goods for the American market. OSHA (Occupational Safety and Health Administration) recognizes NRTLs for products used in American workplaces in accordance with Federal Code 29 CFR 1910.7.
The NRTL certificate offers unequivocal proof that your electrical and electronic products meet the specifications needed for the American market. NRTL certification helps you to quickly reach hundreds of millions of consumers by offering assurance that your products meet the safety requirements to enter the United States.
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