I think C is the right answer
Answer:
- Breeding superior types of grains
Use of machinery
Use of irrigation
Use of fertilization
Soil conservation
Explanation:
Green Revolution is described as the age of drastically increased agricultural productivity due to wide-ranging advancement in agricultural technology in the 20th century.
As per the question, the efforts that were major elements of the Green Revolution include 'breeding of superior types of grains', 'expansion in the use of machinery, fertilization, and irrigation facilities', 'conservation of soil', etc. All these together contributed to substantial growth in the agricultural productivity that led to revolution.
<span>Suspected political opponents were jailed or executed.</span>
