1.
Study the following graph and answer the questions that follow
If US and China, decide to buy carbon credits, from Spain and Ukraine to make up for their high emissions, then in how many years US, and China would be able to bring down its ratio of $$CO_2$$ emission (million ton) to per capita income to world standard benchmark of 0.75. (per capita income of the given countries remain same, 0.5 $$CO_2$$ emissions [million ton] is compensated by purchase of 1.25 units of carbon credit, and a country can buy carbon credit units in three lots of 15, 20 and 30 units in a single year.)
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By: anil on 05 May 2019 02.40 am
CO2 emission required for USA = 225 million tonnes
CO2 emission required for China = 202.5 million tonnes
Required reduction for USA = 975 million tonnes
Required reduction for China = 977.5 O.5 million tone of CO2 ----> 1.25 carbon credits
In one year, 26 million tonnes is compensated.
Required time = 977.5 / 26 = 37.59 years
Hence, option B is the correct answer.
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CO2 emission required for China = 202.5 million tonnes
Required reduction for USA = 975 million tonnes
Required reduction for China = 977.5 O.5 million tone of CO2 ----> 1.25 carbon credits
In one year, 26 million tonnes is compensated.
Required time = 977.5 / 26 = 37.59 years
Hence, option B is the correct answer.