The correct answer to the question is:
(4) The Green Revolution
Explanation:
1. The Green Revolution was a significant period of technological advancement in agriculture that occurred in the 1960s and onwards.
2. It introduced high-yielding varieties of crops, along with modern agricultural techniques and inputs like fertilizers and pesticides.
3. These advancements led to a substantial increase in crop production, especially in developing countries facing food shortages.
4. The Green Revolution played a crucial role in reducing famine by increasing food availability and improving agricultural productivity.
5. Unlike the other options listed:
- Increased urbanization does not directly address agricultural productivity.
- Global warming has negative impacts on agriculture and can exacerbate food insecurity.
- Laissez-faire capitalism is an economic concept and not directly related to agricultural advancements like the Green Revolution.
Therefore, the Green Revolution stands out as the most relevant factor that contributed to the reduction of famine since the 1960s.
