Question
Option 4 : explain how plastic waste becomes a persistent environmental and health concern
Detailed Solution
सही उत्तर explain how plastic waste becomes a persistent environmental and health concern है।
Question:
Read the following passage and answer the question below. Plastic was once celebrated as the miracle material of the twentieth century — cheap, durable and endlessly mouldable. Its afterlife, however, has proved less miraculous. Sunlight and wave action grind discarded plastic into microplastics, fragments smaller than five millimetres that now turn up in ocean trenches, mountain snow and even human blood. Because they are tiny, microplastics slip through most filtration systems and enter the food chain at its base: plankton mistake them for food, fish eat the plankton, and the particles climb the trophic ladder. Laboratory studies link high exposure to inflammation and hormonal disruption in animals, though the evidence in humans remains incomplete. Bans on single-use plastics and better waste collection can slow the flow, but the plastic already in the environment will keep fragmenting for decades. The material we designed to last forever is doing exactly that — just not in the way we intended. The author's primary purpose in the passage is to:
Correct Answer: explain how plastic waste becomes a persistent environmental and health concern
The passage traces plastic from celebrated material to fragmenting pollutant entering food chains and possibly harming health, with the closing line underlining persistence; it explains a lasting concern rather than praising plastic or describing new technology.