A. Density because density is the amount of mass in a given volume
The correct option is A.
Resonance is the phenomenon by which a vibrating system or an external force drives another system to oscillate with greater frequencies at specific frequencies. These specific frequencies are called resonant frequencies. At resonance frequencies, small periodic driving forces have capacity to produce large amplitude oscillation.<span />
<span>Animism is an ancient belief that powerful spirits are inside of everything and they can harm or help you. Therefore, people must be respectful and worship the spirits so they will be helpful to them. The believers practiced magic, rituals, spells and were sometimes witches.</span>
