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What was the major decision that took place in the 1987 Montreal Conference? A. Developed countries will completely ban CFC production by 2000 B. Developed countries will completely ban CFC production by 2010 C. Developing countries will completely ban CFC production by 2000 D. Developing countries will completely ban CFC production by 2020
The following table shows CFC emissions (in million metric tons) from various sectors for an industry for a period of 5 years. Based on the table answer the question given below. Sector Year Cement Fertiliser Foam Pesticides 2015 200 500 80 100 2016 300 600 90 110 2017 320 650 100 120 2018 400 700 150 150 2019 450 800 200 180 What is the approximate contribution in percentage in CFC emissions from the cement sector, in comparison to that of the total CFC emissions from all the sectors in 2017?
The following table shows CFC emissions (in million metric tons) from various sectors for an industry for a period of 5 years. Based on the table answer the question given below. Sector Year Cement Fertilizer Foam Pesticides 2015 200 500 80 100 2016 300 600 90 110 2017 320 650 100 120 2018 400 700 150 150 2019 450 800 200 180 The contribution of CFC emission from the fertilizer sector, in comparison to the total CFC emissions from all the sectors, was the least in which year?
এই জলবায়ু পরিবর্তনের জন্য দায়ী- i.  CFC গ্যাস ii. CO2iii. বনভূমি উজাড় নিচের কোনটি সঠিক?
CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones.
The following table shows CFC emissions (in million metric tons) from various sectors for an industry for a period of 5 years. Based on the table answer the question given below. Sector Year Cement Fertiliser Foam Pesticides 2015 200 500 80 100 2016 300 600 90 110 2017 320 650 100 120 2018 400 700 150 150 2019 450 800 200 180 What is the percentage growth in CFC emissions from the pesticides sector from 2015 to 2019?
The following table shows CFC emission (in million metric tons) form various sectors for an industry for a period of 5 years. Based on the table answer the question given below. Sector Year Cement Fertiliser Foam Pesticides 2015 200 500 80 100 2016 300 600 90 110 2017 320 650 100 120 2018 400 700 150 150 2019 450 800 200 180 Which sector has recorded the maximum percentage growth in CFC emission from 2015 to 2019?
উদ্দীপকে উল্লিখিত অঙ্গে পাওয়া যায় -i.  O2ii. CO2iii. N2 নিচের কোনটি সঠিক
CaCO3 প্রস্তুতিতে প্রয়োজন -i. CaOii. CO2iii. CO নিচের কোনটি সঠিক?
লুইস এসিডগুলো হলো— (ঢা. বো. ২১/i. SO2ii. CO2iii. Ag+নিচের কোনটি সঠিক?