The major contributor to green house gases to the atmosphere is:
Correct answer: B. USA
- A. Russia
- B. USA
- C. Brazil
- D. Germany
Explanation
Among the listed countries, the United States has historically been identified as a major contributor to greenhouse-gas emissions, particularly in standard textbook comparisons. The ranking can change with the year and whether emissions are measured by total output or per capita, but the key matches the intended comparison.
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Practise Forest Ecology
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