Questions

Salinity is often high in enclosed seas, this is due to high temperature, rapid evaparation and little inflow of fresh water.

While dew , fog and mist are formed due to condensation of vapour into water drops, hail falls from the clouds in the form of hard pellets of ice.

M=P(1+i)^n

I=M-P

Ans.  Suppose the speed of boat in still water is x km/h and speed of stream is y km/h

Speedof boat in downstream = (x + y) km/h x+ y = 32 …(i) 

Speed of boat in upstream = (x – y) km/h

x – y = 28 …(ii)

Add. Eqs. (i) and (ii), we get 2x = 60

x = 30 km/h

SQL statements are broadly classified into three. They are

1. DDL – Data Definition Language

DDL is used to define the structure that holds the data. For example, Create, Alter, Drop and Truncate table.

2. DML – Data Manipulation Language

DML is used for manipulation of the data itself. Typical operations are Insert, Delete, Update and retrieving the data from the table. The Select statement is considered as a limited version of the DML, since it can't change the data in the database. But it can perform operations on data retrieved from the DBMS, before the results are returned to the calling function.

3. DCL – Data Control Language

DCL is used to control the visibility of data like granting database access and set privileges to create tables, etc. Example - Grant, Revoke access permission to the user to access data in the database.

World Consumer Rights Day is being observed globally on 15 March which is an awareness day for the consumers.

India's first Indian Institute of Skills will get in 3 locations viz. Mumbai, Kanpur and Ahmedabad in the country. Ministry of Skill Development and Entrepreneurship has approved the proposal to set up Indian Institute of Skills (IISs) on Not-for-profit Public Private Partnership (N-PPP) basis.

The reason behind these institutes is to promote further growth of the Indian Skills sector overall, new measures have been initiated by the Government of India to establish state of the art training institutions called Indian Institutes of Skill (IISs).