Which road plan was introduced to improve the conditions of roads in India after independence?

Name the ‘Highway’ which connects the South American countries with Canada.

In which region are dogs and reindeer used as pack animals?

Why were all forms of transport referred to as lines of communication?

In which economic sector are both productions and exchange included?

Name the two South-Asian economists, who have worked together on ‘Human Development Report’.

Classify metallic minerals into two categories.

Which type of settlements derive their basic economic needs mainly from secondary and tertiary activities?

Name the countries having the highest and the lowest sex ratio in the world.

What is the main cause of formation of ‘urban smog’?