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The concentration of carbon dioxide in the Earth's atmosphere is currently around 415 parts per million (ppm). If the concentration of carbon dioxide continues to increase at the current rate of 2 ppm per year, what will the concentration of carbon dioxide be in 50 years?


Option: 1

515 ppm

Option: 2

615 ppm

Option: 3

715 ppm


Option: 4

815 ppm

Answers (1)


We can solve this problem by using a simple linear equation, where the concentration of carbon dioxide(CO_2) is the dependent variable and time is the independent variable. Let's assume that the initial concentration of CO_2  is 415 ppm at time t = 0, and the rate of increase is 2 ppm per year. We can express this as:

CO_2 = 415 + 2t

where t is the time in years. To find the concentration of CO_2  after 50 years, we can substitute t = 50 into the equation and solve for CO_2

CO_2 = 415 + 2(50)

CO_2 = 415 + 100

CO_2 = 515\ ppm

Therefore, the answer is (1) 515 ppm.

Posted by

Pankaj Sanodiya

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