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The figure shows increase in CO₂ content (ppm) from 1985 to 2015 in Delhi. The peaks come in about June and the valleys in January each year. Increase in CO₂ content from 1985 to 2015 is about

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Detailed Solution

From figure, CO₂ content in 1985 = 318 ppm
CO₂ content in 2015 = 351 ppm
Increase in 30 years = 33 ppm

Percentage increase w.r.t. 1985 value $= \frac{33 \times 100}{318} = 10.37 %$

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