Glenna goes to the concert given by her daughter's third-grade orchestra, even though she knows the students will play out of tune. as the instruments play, the sound waves travel into glenna's auditory canals and strike tightly stretched membranes. the sensory process by which glenna will hear the music begins with the vibration of the

vibration of the eardrum

the part of the earth that is best reflected on a map is the surface. maps reflect borders of countries or territories as well as physical features like mountains.

explanation:

"social stratification refers to the way people are ranked and ordered in society. in western societies, stratification is primarily seen and understood as a result of socioeconomic status, which produces a hierarchy in which access to resources, and possession of them, increases from the lower to the upper strata"