Environmental Protection Tip of the Day 7.21: Reward for participation, plus 5 more points for answering 3 questions correctly

2016-07-21View Original

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Environmental Protection Tip of the Day 7.21: Reward for participation – 3 points, plus an additional 5 points for each correct answer. Multiple-choice questions: Emissions of ( ) into the atmosphere must be approved by the local environmental protection authorities. A. Converter gas B. Calcium carbide gas C. Yellow phosphorus off-gas from electric furnace process D. Organic smoke gases. ABCD

Reply #22016-07-21

A. Converter gas B. Calcium carbide gas C. Yellow phosphorus off-gas from electric furnace process D. Organic smoke gases.

Reply #32016-07-21

A. Converter gas B. Calcium carbide gas C. Yellow phosphorus off-gas from electric furnace process D. Organic smoke gases

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Environmental Protection Tip of the Day 7.21: Reward for participation, plus 5 more points for answering 3 questions correctly

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