The plant is most likely pollimated by the wind. Vivid ,bright colours along with strong scents attract insects. However, since the plant lacks both of those we can assume that the main factor that helps to its pollination is the wind
The pitch of a sound is how high or low a sound is when we hear it, whereas the intensity of a sound is the energy/vibrancy of the sound over an area and depends on the frequency of the sound as well.
