A. USA
A.
B. China
B.
C. India
C.
D. Russia
D.
Correct Answer: B
সঠিক উত্তর: B
Explanation
ব্যাখ্যা
China is currently the world's largest emitter of carbon dioxide (CO₂) by a significant margin. In 2023, China emitted approximately 11,903 million metric tons of CO₂, accounting for about a third of global emissions. The primary source for these emissions is the burning of fossil fuels, particularly coal, which powers its large industrial and manufacturing sectors.