All of the are false lowest it can be without a human ear picking up is 19 hertz
D) A & B
it protects the seed against any damage or harmful weather conditions and also helps in dispersal of the seed through different means.
The likely results of using compulsive exercise to deal with stress are <span>fatigue and diminished performance. Since the exercise was compulsive and not based on one's own decision, the exercises done would be a burden rather than something that will relieve stress. Moreover, the compulsive exercises will only lead to the person's exhaustion and reduced productivity. </span>
The physical need to eat food is called hunger