High-Yielding Varieties (HYVs) were introduced in Kerala during the:

Green Revolution
White Revolution
Modernization Era
Industrial Era Answer: a

The correct answer is: a) Green Revolution.

The Green Revolution was a period of agricultural development that began in the mid-20th century. It was characterized by the introduction of new agricultural technologies, including high-yielding varieties (HYVs) of crops, fertilizers, and pesticides. The Green Revolution was a major success in increasing agricultural production, and it helped to alleviate hunger and poverty in many parts of the world.

Kerala was one of the first states in India to adopt the Green Revolution. The state government introduced HYVs of rice and other crops, and it provided farmers with access to fertilizers and pesticides. The Green Revolution had a major impact on Kerala’s agriculture, and it helped to increase the state’s food production.

The other options are incorrect. The White Revolution was a period of dairy development that began in India in the 1970s. The Modernization Era is a term used to describe the period of rapid social and economic change that began in the late 18th century. The Industrial Era is a term used to describe the period of economic development that began in the late 18th century and was characterized by the rise of factories and mass production.