Very Far , a little Far|| Class - 4 || Unit - 10 || EVS || Whiteboardweb

 

 

 

 

 

 

 

 

unit - 10

 

 

Very Far,a little Far

 

 

 

 

 

 

1.What were the means of communications in the past?

 

 

 

Trained pigeons

 

 

Perumbara

 

 

Doothan

 

 

Anchalottakkaran

 

 

 

 

2.What are the methods for exchanging information?

 

 

 

e-mail 

 

 

Newspaper

 

 

Computer

 

 

Telegraph

 

 

Radio

 

 

Television

 

 

Internet

 

 

Fax

 

 

Telephone

 

 

Walkie Talkie

 

 

Mobile phone

 

 

 

 

3.What all could be the reasons for the changes in the field of communication?

 

 

Great changes occur in the field of communication.These changes make communication faster,less expensive and more convenient.

 

 

 

 

4.Identify the changes in the field of communication and complete the table