Understanding Industrial Disasters: Death Toll Ranking

This question requires us to identify major industrial disasters that occurred between the years 1945 and 1990 and then arrange the locations of these disasters in ascending order based on the number of fatalities.

Analyzing Disasters and Fatalities (1945-1990)

Let's examine the key industrial disasters mentioned in the options and their estimated death tolls:

• A. Cali, Colombia (1978): This disaster involved a massive explosion of liquefied petroleum gas (LPG). The estimated number of deaths is around 246 people.
• B. Salang Pass, Afghanistan (1982): A catastrophic fire occurred in the Salang Tunnel during the Soviet–Afghan War. While primarily a transportation and military incident, it resulted in a high number of casualties, estimated between 700 to 1000 deaths.
• C. Bhopal, India (1984): Known as the Bhopal gas tragedy, this is considered one of the world's worst industrial disasters. A methyl isocyanate (MIC) gas leak from the Union Carbide plant caused immediate deaths and long-term health issues. Initial death tolls were around 3,800, but total estimates range widely from 15,000 to over 20,000 people.
• D. Kyshtym, USSR (1957): This was a major nuclear accident at the Mayak plutonium production facility. It involved the explosion of a radioactive waste storage tank. While the immediate death toll was significantly lower than Bhopal, potentially around 200, the long-term health effects and radioactive contamination were severe.

Ordering Disasters by Ascending Deaths

Based on the estimated fatalities, we can arrange the locations in ascending order (from lowest deaths to highest deaths):

1. D. Kyshtym, USSR: Approximately 200 deaths.
2. A. Cali, Colombia: Approximately 246 deaths.
3. B. Salang Pass, Afghanistan: Approximately 700 to 1000 deaths.
4. C. Bhopal, India: Estimated 15,000 to 20,000+ deaths.

Therefore, the correct ascending order is D, A, B, & C.

Conclusion

The question asks for the places/countries of highest deaths in ascending order for industrial disasters between 1945 to 1990. Comparing the estimated death tolls:

• Kyshtym (D) had the lowest estimated fatalities among these options.
• Cali (A) had slightly more fatalities than Kyshtym.
• Salang Pass (B) had a higher death toll than Cali.
• Bhopal (C) had the highest number of fatalities by a significant margin.

This confirms the order D, A, B, C.