Which statement describes the impact of the green revolution on developing nations? environmental protections prevented industrial growth. new farming technologies increased food output. liberal economic policies opened the region to trade.

New farming technologies increased food output.

Explanation:

The Green Revolution is the name given to the period between 1950 and the late 1960s. During this time period, research throughout the world increased agricultural production worldwide. Food output increased everywhere, but this was most obvious in the developing world. Some of the strategies that were adopted during this time period were the development of high-yielding cereal grains, expansion of irrigation infrastructure, hybridized seeds and synthetic fertilizers.

this isn't a question and if you're going to list things be kind and use commas.