B and D.
A respondent behaviour is caused by a stimuli. In this case, it’s the body’s natural instinct to sniff to locate the source of a strange odour or to blush when embarrassed.
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The correct answer is D.crust, mantle, outer core, inner core
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Enzyme- they are also known as natural catalysts.
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Answer:
As a wave's wavelength increases, the frequency decreases, and as wave's wavelength decreases, the frequency increases. When electromagnetic energy is released as the energy level increases, the wavelength decreases and frequency decreases.
Explanation:
