I think the answer is c but I looked it up and got this: system or thing used as an example to follow or imitate.
Answer:Towhen two waves if nearly same amplitude and same wavelength interfere with each other that time a new wave is formed with a different amplitude this phenomena is known as superposition. If two waves interfere with each other in same phase that time amplitude of resultant wave wave is greater than the component waves and this type of interference is known as constructive interference. And when waves suprpose in opposite phase that time amplitude of resultant wave is less than the component waves and this type of interference is known as destructive interference.
Example: light waves, water waves, sound waves etc
The climate of the tropical zone characterized by a very wet season alternating with a very dry season is wet/ dry topical climate.
Answer:
The coughing reflex kicks in, only if the epiglottis reflex fails to. If the coughing reflex fails then the Heimlich maneuver may be needed.
The answer is predict future events.
