21.

Mention two problems affecting the fishing industry in Bangladesh.  

Give three reasons to explain why there is a dense network of railways over the North Indian Plains.

i. Mention two demerits of road transport.

ii. Name the terminal towns of :

1. National Highway Number 1.

2. National Highway Number 2.

Pipelines are a very convenient mode of transport mode of transportation, yet there are difficulties in using them. Enumerate two difficulties in using pipelines as a mode of transport.

What is Tele Communication ? What are the main components of Tele Communication ?

Mention two advantages of mini cement plants. 

i. The availability of which two factors, determines the localisation of the aluminium industry ?

ii. Name two products made from aluminium.

i. What is the difference between 'foot loose' and 'Key' industries ?

ii. Give one example of each of the industries mentioned in (i) above. 

i. Name the agro-based industry located near the Deccan Trap Region.

ii. Mention two important factors responsible for the location of the industry, in the above-mentioned region. 

What is multi - level planning ? What are the advantages of this type of planning ?