Questions

The biggest concern is the cost incurred for test automation. Also, often s/w test automation requires skilled personnel and authentic test automation tools. Purchasing license of such tools is a costly affair.

Also the time required for test automation is more. Automation often requires recording the sequence of operations you need to perform in order to execute a particular test case and comparing the final o/p with the expected o/p. Functions/macros need also be written sometimes for some test cases. All this could be a time consuming job. 

Cohesion refers to attraction between molecules of the same kind while adhesion refers to attraction between different kinds of molecules

In 1975, a party called khmer Rouge had taken control of Cambodia under the leader ship of Pol Pot. The Government of Pol pot established a regime of terror in Cambodia and started following a policy of genocide against its own people.

Baburnama was the autobiography of founder of the Mughal Empire Babur. It is wrtten in Chagatai Turkic language, which is his mother tongue.