Questions

An index is an optional structure associated with a table to have direct access to rows, which can be created to increase the performance of data retrieval. Index can be created on one or more columns of a table.

Encapsulation, Object class and instance.

A pure solid and a pure liquid are definitely a single phase because they are so united, or homogeneous. This leads to a homogeneous mixture also being a single phase.

Hence, the option that cannot be considered a single phase is A. a heterogeneous mixture.

Bengaluru becomes the first Indian city to get its very own logo

• Much like New York and Singapore, Bengaluru is set to get its own logo, becoming the first Indian city to do so.

Sukumar Sen, a civil servant who served as the first Chief Election Commissioner of India from 21 March 1950 to 19 December 1958.