Passage - 2
A global analysis of nitrogen use efficiency — a measure of the amount of nitrogen a plant takes in to grow versus what is left behind as pollution — says that using too much fertilizers will lead to increased pollution of waterways and the air. Currently, the global average for nitrogen use efficiency is approximately 0.4, meaning 40 per cent of the total nitrogen added to cropland goes into the harvested crop while 60 per cent is lost to the environment, says a study. More than half of the world's population is nourished by food grown with fertilizers containing synthetic nitrogen, which is needed to produce high crop yields. Plants take the nitrogen they need to grow, and the excess is left in the ground, water and air. This results in significant emissions of nitrous oxide, a potent greenhouse and ozone depleting gas, and other forms of nitrogen pollution, including eutrophication of lakes and rivers and contamination of river water.

Which one of the following statements best reflects the most logical, rational and crucial message implied by the passage ?

Question

Passage - 2
A global analysis of nitrogen use efficiency — a measure of the amount of nitrogen a plant takes in to grow versus what is left behind as pollution — says that using too much fertilizers will lead to increased pollution of waterways and the air. Currently, the global average for nitrogen use efficiency is approximately 0.4, meaning 40 per cent of the total nitrogen added to cropland goes into the harvested crop while 60 per cent is lost to the environment, says a study. More than half of the world's population is nourished by food grown with fertilizers containing synthetic nitrogen, which is needed to produce high crop yields. Plants take the nitrogen they need to grow, and the excess is left in the ground, water and air. This results in significant emissions of nitrous oxide, a potent greenhouse and ozone depleting gas, and other forms of nitrogen pollution, including eutrophication of lakes and rivers and contamination of river water.

Which one of the following statements best reflects the most logical, rational and crucial message implied by the passage ?

Accepted Answer

Correct Option: An enhanced efficiency of use of nitrogen is imperative for both food production and environment. The passage discusses nitrogen use efficiency, pointing out that currently 60 percent of nitrogen added to cropland is lost to the environment, causing severe pollution (nitrous oxide emissions, ozone depletion, eutrophication) while synthetic nitrogen is essential to nourish over half the world's population for high crop yields. The central message running through the passage is that since we need high crop yields using nitrogen for food production, but excess nitrogen causes severe environmental damage, improving and enhancing the efficiency of nitrogen use is imperative for both sustaining food production and protecting the environment. Option (a) precisely captures this crucial message. Options (b), (c), and (d) suggest extreme or ungrounded policy steps not directly advocated as the central message. Thus, option (a) is correct.

Which one of the following statements best reflects the most logical, rational and crucial message implied by the passage ?

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