| 1 |
Brazil's largest iron ore deposits are in: |
- A. Minas Geras
- B. Paraba valley
- C. Bahia
- D. Mato Grasso
|
| 2 |
Evolution of modern civilization is dependent upon: |
- A. Agriculture
- B. Minerals
- C. Education
- D. Human effort
|
| 3 |
In 2001, Brazil' s iron ore production was: |
- A. 50 million metric tons
- B. 100 million metric tons
- C. 125 million metric tons
- D. 200 million metric tons
|
| 4 |
In the world, iron ore production in 1990 was: |
- A. 100 million metric tons
- B. 1000million metric tons
- C. 500million metric tons
- D. 976million metric tons
|
| 5 |
According to June 2015 estimates, iron ore reserves of the world are: |
- A. 190,000 million metric tons
- B. 100,000metric tons
- C. 50,000metric tons
- D. 1000million metric tons
|
| 6 |
In 1990, world's largest producer of iron ore was: |
- A. Russia
- B. United States of America
- C. China
- D. India
|
| 7 |
In haematite iron ore, iron particles content: |
- A. Is 60-70 percent
- B. Is up to 50 percent
- C. Is near about 40 percent
- D. Is up to 45 percent
|
| 8 |
In magnetite iron ore, iron particles percentage: |
- A. Is up to 60 percent
- B. Is near about 50 percent
- C. Is up to 72.4 percent
- D. Is about 90 percent
|
| 9 |
In the world, Australia ranks in iron ore production: |
- A. At first position
- B. At second position
- C. At fifth position
- D. At not any position
|
| 10 |
Mining is considered as man's: |
- A. Primary economic activity
- B. Quinary economic activity
- C. Secondary economic activity
- D. Tertiary economic activity
|
