Choose which aspects of civilization scholars still have questions about for the indus valley civilization. select all that apply. kind of government city planning establishment of farming reading their writing reasons for disappearing used weights and measurements mysteries of the indus valley civilization

Explanation:

The Indus civilization, one of the first great civilizations in history, was in Punjab and was discovered in the second half of the 19th century. In the 1920s, a series of tombs were discovered that led to the excavation of two ruined cities.

Although there are many studies on this civilization and much has been discovered, much information still casts doubt on scholars. Scholars know that this civilization had an authoritarian government and a complicated writing system, but there is little information about how this government worked and how writing was used, which raises many doubts for scholars.

Another thing that raises doubts is the reasons that led this civilization to disappear, there are many theories about it, but all present contradictory information at some point which makes this information a true mystery.

answer; the automatic system because it is a "gut reactor"