The state government of Tamil Nadu might implement policies to:

Develop drought-resistant crop varieties
Encourage water conservation measures
Promote renewable energy sources
All of the above

The correct answer is: d) All of the above.

Tamil Nadu is a state in India that is prone to droughts. In order to mitigate the effects of drought, the state government has implemented a number of policies, including developing drought-resistant crop varieties, encouraging water conservation measures, and promoting renewable energy sources.

Drought-resistant crop varieties are crops that are able to withstand periods of drought. These crops are often developed by cross-breeding existing crops with drought-tolerant wild relatives. Drought-resistant crop varieties can help farmers to continue to produce food even during drought conditions.

Water conservation measures are practices that help to reduce the amount of water that is used. These measures can include things like installing drip irrigation systems, using water-efficient appliances, and fixing leaks. Water conservation measures can help to ensure that there is enough water for everyone during drought conditions.

Renewable energy sources are sources of energy that are not depleted when they are used. These sources of energy include things like solar power, wind power, and hydropower. Renewable energy sources can help to reduce the state’s reliance on fossil fuels, which can help to protect the environment.

The state government of Tamil Nadu is committed to mitigating the effects of drought. The policies that the government has implemented are helping to make the state more resilient to drought.