world economic industry trade agriculture section 8 MCQ Questions & Answers Detailed Explanation

Answer: (b)

Long recognized as the historic heart of the American automotive industry, Detroit took on the nick name “Motor city”.

Answer: (b)

The third-most abundant element in the Earth’s crust, aluminium makes over eight per cent of the earth’s crust.

It never occurs naturally in its pure state and is usually found in the form of oxide known as bauxite. It is found combined in over 270 different minerals. China is the largest producer of aluminium in the world.

In 2010, China produced over 16800 thousand metric tonnes of aluminium. The second place is occupied by Russia followed by Canada, Australia, United States, Brazil, India, United Arab Emirates, Bahrain, Norway, South Africa, Iceland, Mozambique, Venezuela, and Argentina.

Answer: (c)

Australia has the world’s largest uranium reserves. Approximately 24% of the planet’s uranium is present in Australia now 31%.

Answer: (b)

International date line lies between 180°W and 180ºE of Greenwich. It is drawn zigzag to avoid landmass. There is a difference in 1 day if a ship sails westward from Greenwich by crossing the date line.

Answer: (d)

Plantation agriculture is an export oriented specialised farming method. Where emphasis is given to raise a single crop-specially meant for export to the overseas countries. It is practical mainly in tropical region.