Questions

The required five letters word is SHORT, and when you add the two letters 'ER' it becomes SHORTER.

Sufi silsilas began to crystallise in different parts of the Islamic world around the twelfth century. The word silsila literally means a chain, signifying a continuouslink between master and disciple, stretching as an unbroken spiritual genealogy to the Prophet Muhammad. It was through this channel that spiritual power and blessings were transmitted to devotees. Special rituals of initiation were developed in which initiates took an oath of allegiance, wore a patched garment, and shaved their hair. Thus, all statements are correct.

It refers to the failed attack on Castro's Cuba launched by a group of exiles in April 1961

 Ask for time: Unless the negative feedback matters something that is right-on-the-spot fixable, it’s correct to ask for time to consider what your customer has told you. This provides several advantages. It defuses the immediate situation. It tells the other person that you deal with their feedback important sufficient that you want to keep in mind it cautiously and calmly. And it allows you to assume through the accuracy of what you’ve been informed, perhaps checking out its validity with others.

Burning gasoline is the only process that involving in a chemical change in the given options. A chemical change is a change in the starting substances that are called reactants from the formed new substances that are called products.