1) Dense and efficient network of transport and communication is a pre-requisite for local, national and global trade today - Social Science - Life Lines of National Economy

Question

1) Dense and efficient network of transport and communication is
a pre-requisite for local, national and global trade today
comment
2) Explain the importance of radio and television as effective
means of communicaton in our country
3) classify roads into six roads acoording to their capacity?
what is the role of NH authority of india?
4) list two ways of NTPC contributed towrds the preservation of
national environment

Reecha Upadhyaya · Accepted Answer

For the first two questions, you can refer to @Gayatri's answer
The answers of the remaining two are given below:
3) Classify roads into six roads according to their capacity?
what is the role of NH authority of India?

Golden Quadrilateral Super Highways:
National Highways:
State Highways:
District Roads:
Other Roads:Rural roads, which link rural areas and villages
with towns
Border Roads:

Role of NH authority:

The National Highways Authority of India (NHAI) is the nodal
agency responsible for building, upgrading and maintaining most of
the national highways network

4) list two ways of NTPC contributed towards the preservation of
national environment

NTPC was the first among power utilities in India to start
Environment Impact Assessment (EIA) studies and reinforced it with
Periodic Environmental Audits and Reviews
NTPC established Centre for Power Efficiency &
Environmental Protection (CenPEEP) in collaboration with USAID with
a mandate to reduce GHG emissions per unit of electricity generated
by improving the overall performance of coal-fired power
plants