Pitch is related to while loudness is related to for a sound wave.
1.amplitude, frequency
2.reflection, refraction
3. frequency, amplitude
4. amplitude, energy

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

Why do we perceive objects as retaining their brightness under different lighting levels?

Which areas of earth receive the most precipitation on average? a. tropics b. temperate zones c. regions near 30? n and s latitudes d. polar zones 1