Answer:
Option D
The frequency
Explanation:
The speed of wave is depedant only on the wavelength and frequency of waves since it is given by s=fw where s is the speed, f is frequency and w is the wavelength. Since the options given has only one factor, that is frequency, hence option D is correct. In case we had wavelength could be among the options, both would be correct.
A lighted candle produces heat however not as much heat as a heater or the sun would.
just swim In water and find your shoe
C. increased stirring i think
Water is, indeed, an exception. Normally when temperature drops, material shrinks. Water doesn't, water expands instead.
