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Gap Fill (Without Clues)Dinajpur Board 2019
মার্কস: 0.5 × 10

এই লেসনটি এক্সপ্লোর করছো!

প্রাকটিস শুরু করতে এবং প্রগ্রেস ট্রাক করতে লগইন করো।

লগইন করো
Scientists have recently reported that surface ice caps are . This is due to a rise atmospheric temperature known the greenhouse effect. According to the scientist, carbon dioxide is primarily responsible temperature rise in . The carbon dioxide is high when coal and oil burnt. The gas is accumulating the atmosphere and causing the temperature to rise. As a result, the polar ice in the North and South poles melting. We should maintain the ecological of the environment.