Green Revolution and Its Aftermath

Q. Which among the below given statements accurately portray the impact of Green Revolution in the agricultural sector?

1. The agricultural productivity increased due to increase in land area under cultivation.
2. The import of food grains increased despite achieving self-sufficiency in food grains.
3. The demand of labour force increased due to adoption of multiple cropping and mechanisation of farming.
4. The technological spillovers from the Green Revolution were scattered with some states benefiting more than the others.