In which country are motorways called ‘autobahns’ ?

How is density of population of a region calculated ?

Who are called red collar workers ?

Explain with examples the ‘population size’ criteria used by most countries to define urban areas.

Explain any three characteristics of clustered rural settlements of India.

Mention any two characteristics of sub-urbanisation.

What two factors mostly helped in the development of ancient towns in India ?

Explain the term ‘Golden Quadrilateral’.

Mention any two sources of water pollutants created by humans.

‘‘The knowledge about nature is extremely important to develop technology.’’ Support this statement by giving three examples.