Researchers have recently focused on the economic agents which play a critical role in deforestation. Some such agents are: soy beans, beef, cattle, palm oil, timber and pulp, wood for fuel, etc. The world’s growing appetite for beef has contributed significantly to the destruction of tropical rain forests.

Correct Option: D

Researchers have recently focused on the economic agents which play a critical role in deforestation. Some such agents are: soy beans, beef, cattle, palm oil, timber and pulp, wood for fuel, etc. The world’s growing appetite for beef has contributed significantly to the destruction of tropical rain forests.

In 2009, Australia was the top producer of bauxite with almost one-third of the world’s production, followed by China, Brazil, India, and Guinea. In November 2010, Nguyen Tan Dung, the Prime Minister of Vietnam, announced that Vietnam’s bauxite reserves might total 11000 Mt; this would be the largest in the world.

Correct Option: D

In 2009, Australia was the top producer of bauxite with almost one-third of the world’s production, followed by China, Brazil, India, and Guinea. In November 2010, Nguyen Tan Dung, the Prime Minister of Vietnam, announced that Vietnam’s bauxite reserves might total 11000 Mt; this would be the largest in the world.

The world’s largest producers of natural diamonds are Russia, Congo and Botswana, altogether accounting for 60% of the global diamond production. The government-run super-major ALROSA accounts for approximately 95% of all Russian diamond production.

Correct Option: A

The world’s largest producers of natural diamonds are Russia, Congo and Botswana, altogether accounting for 60% of the global diamond production. The government-run super-major ALROSA accounts for approximately 95% of all Russian diamond production.

Switzerland has no mineral resources; two third of its area is covered with forests, lakes and mountains. Due to the paucity of mineral resources, it has to import, process and resell them as products.

Correct Option: A

Switzerland has no mineral resources; two third of its area is covered with forests, lakes and mountains. Due to the paucity of mineral resources, it has to import, process and resell them as products.

The distance between London and Perth is 8989 miles (or 14466 kilometres). The shortest air route from Perth to London is Perth-Ankara, Paris-London.

Correct Option: B

The distance between London and Perth is 8989 miles (or 14466 kilometres). The shortest air route from Perth to London is Perth-Ankara, Paris-London.