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

In which economic sector are both productions and exchange included?

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.

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

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

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

Classify metallic minerals into two categories.

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

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