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English Translations » 历史存档[信息] » Environmental Protection Daily Tip – July 19: Reward for par

Environmental Protection Daily Tip – July 19: Reward for participation; an additional 5 rewards for answering 3 questions correctly

2016-07-19View Original

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Multiple-choice question; The main reason for the increase in CO2 concentration in the atmosphere is ( ). A. Heavy use of fossil fuels B. An increase in solar sunspots C. Severe destruction of temperate forests D. Rising Earth temperatures leading to the release of CO2 from seawater. A
Reply #22016-07-19
A. Heavy use of fossil fuels
Reply #32016-07-19
A. Heavy use of fossil fuels
Reply #42016-07-19
A. Heavy use of fossil fuels
Reply #52016-07-19
A. Heavy use of fossil fuels
Reply #62016-07-19
A. Heavy use of fossil fuels

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Translated at 2026-07-20 23:47:05

Original: https://bbs.hcbbs.com/thread-1602802-1-1.html

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