Questions

There are 33 districts in Telangana state at present.

Process by which sediment is removed from its source is called Erosion.

Legislative branch is made of two houses. 

1. Congress - the Senate and

2. House of Representatives.

Senate- composed of 100 senators two for each states - Vice President of USA is president of Senate.

House of Representatives - The House of Representatives is made up of 435 elected members, divided among the 50 states in proportion to their total population.

Skimming is the removal of any material or particles that are floating on the surface. Hence, Removal of oil and grease from sewage - waste water is called as skimming.

A primary key is a special relational database table column or combination of columns designated to uniquely identify all table records. That is, A primary key is a column or set of columns in a table that uniquely identifies tuples (rows) in that table.

A primary key, also called a Primary Keyword.

Main Features Primary key are ::

It must contain a unique value for each row of data.

It cannot contain null values.