631. Which country produced the third most rubber ?
A. India
B. Indonesia
C. Thailand
D. Malaysia

632. What is the total population of Nauru ?
A. 1950
B. 1800
C. 1900
D. 2510

633. Malnutrition is one of the main reasons behind the high mortality rates among ?
A. mothers
B. infants
C. both a & b
D. not a nor b

634. Which of the following countries is the leading producer of rice in the world ?
A. Australia
B. Argentina
C. China
D. Cuba

635. The largest producer of silk in the world is ?
A. India
B. Japan
C. China
D. Brazil

636. Which of the following countries is the largest producer of coal in the world ?
A. Russia
B. China
C. Pakistan
D. USA

637. The world’s largest oil refinery of the world is located at ?
A. Lagos (Nigeria)
B. Riyadh (Saudi Arabia)
C. Tabriz (Iran)
D. Abadan (Iran)

638. Which of the following countries leads in the production of sugar in the world ?
A. USA
B. India
C. Cuba
D. Brazil

639. Which of the following countries lead in the production of sugarcane in the world ?
A. China
B. Brazil
C. India
D. USA

640. Which of the following countries lead in the production of Nickel in the world ?
A. Canada
B. USA
C. China
D. Russia