A student is using the electromagnetic spectrum to design a device for human communication. The student needs a wave that has more energy than a radio wave and less
energy than an infrared wave. Determine which wave the student should choose, and
describe the wavelength and frequency of the wave compared to a radio wave and infrared
wave.
mony

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evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.