Which one of the following means of communication is the fastest?

To travel in the city, we use a type of train called

To go to moon astronauts travel in

My dad and I went on a camping holiday and travelled down the Murray river by using a

Which one of the following sail the seas carrying food, cars and other large things?

Tanmay's cousin wants to go for higher studies to a foreign country. She will go by

(a) We can travel to the Moon in an areoplane. (b) Trains are used to carry only passengers.

Which one of the following means of transportation is slowest ?

The vehicle which runs without using petrol and hence does not pollute the air is

Telephone, radio, computer and television are means of