When you board an airplane, the boarding order generally starts with first-class passengers, and then makes its way down to the coach class. Imagine you are boarding an aircraft, and you are in coach class. As you search for a place to store your luggage, you notice that the people in first class are already being served free wine and snacks. This an example of

status hierarchy

Explanation:

The status hierarchy is a system of stratification based on social prestige and this prestige can be linked to different things such as occupation, lifestyle, membership in certain organizations. When you board an airplane, the boarding order generally starts with first-class passengers, and then makes its way down to the coach class. Imagine you are boarding an aircraft, and you are in coach class. As you search for a place to store your luggage, you notice that the people in first class are already being served free wine and snacks. This an example of status hierarchy.

i believe

clean air is essential for health and survival

clean air provides nitrogen gas for plant respiration

clean air supplies oxygen that enables living organisms to breathe

hope this

i am brianly

sorry if this doesn't

answer; dead end or culdesac;