3 Human-Caused Disasters

The video explores three major human-caused disasters: the Bhopal gas tragedy, the Chernobyl nuclear disaster, and the Deepwater Horizon oil spill. Each disaster is analyzed in terms of its causes, consequences, and the lessons learned. The Bhopal disaster involved a toxic gas leak, Chernobyl was a nuclear reactor explosion, and Deepwater Horizon was an oil spill. Understanding these events highlights the importance of safety protocols and decision-making in preventing future catastrophes.

What is the main reason for studying human-caused disasters according to the introduction?

• To ignore the data that could prevent them

• To find a single cause for each disaster

• To understand the series of bad decisions leading to them

• To blame science for the accidents

What was the primary chemical involved in the Bhopal disaster?

• Sevin

• Methyl isocyanate

• Methylamine

• Carbon dioxide

What was the disputed cause of the Bhopal disaster according to Union Carbide?

• Design flaws

• Faulty maintenance

• Sabotage

• Poor safety protocols

What was the purpose of the test conducted at Chernobyl's reactor number 4?

• To increase the power output

• To test the backup diesel generators

• To shut down the reactor permanently

• To see how long turbines would run without power

What was the immediate cause of the explosion at Chernobyl?

• A sudden drop in power supply

• The insertion of control rods

• The lifting of graphite caps

• The boiling of water in the reactor core

What was the initial event that led to the Deepwater Horizon disaster?

• A misinterpreted cement test

• An explosion on the platform

• A failed blowout preventer

• A leak in the drill pipe

How long did oil flow into the Gulf of Mexico after the Deepwater Horizon accident?

• 100 days

• 30 days

• 60 days

• 87 days