How did arab spring began? What are the events that triggered it?

Arab spring began in Tunisia on 17th December 2010 due to government corruption and dictatorship

Explanation:

Arab spring began in Tunisia on 17th December 2010. There was complete unrest and peace of the country was at stake. Several demonstrations were taking place because of the following reasons -

a) Dictatorial government was thrown by the citizens of the country

b) Government malpractices and corruption

c) Economic disbalance and

d) Social bias and exclusion.

e) Killing of people in protest.

the section of the chart that represents a point at which a bill needs approval from a majority of people in both chambers to advance is j, as this is the only section before the bill becomes law which has both rows (symbolizing the chambers) converging into one, meaning that the two parts of the congress have to approve of it before it can march on with the process.