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2. Atmospheric carbon dioxide (CO 2 ) is believed to be a primary factor in global warming Levels of CO, are increasing because human activities, such as burning fossil fuels, send more CO 2 , into the atmosphere than natural biological processes remove Estimates in 2012 suggested that Earth's atmosphere contained 393 parts per million (ppm) of co 2 with another 2 ppm added each year a) Based on findings of the 2012 study, what function could be used to estimate the atmospheric CO 2 at any time x years after 2012 b) Using your model from part a What level of atmospheric CO 2 can be expected in the year 2025? In what year can we expect atmospheric CO 2 to reach 400 ppm? M o nd c Suppose that omissions from

Sagot :

Answer:

(a)Required relation is 393 + 2x ppm

(b)Amount of [tex]CO_2[/tex] concentration in 2025 is 419 ppm

(c)After 3.5 years concentration of [tex]CO_2[/tex] is 400 ppm

Step-by-step explanation:

From the question it is given that :

Estimated [tex]CO_2[/tex] in atmosphere in 2012 is 393 (parts per million)ppm

[tex]CO_2[/tex] level increasing per year is 2 ppm

(a) Let y be the concentration of [tex]CO_2[/tex] in atmosphere after x years from 2012 then:

y = 393 + 2x ppm

Therefore required relation is 393 + 2x ppm

(b) amount of [tex]CO_2[/tex] in 2025 i.e.,x = 13 years after 2012 is y

y = 393 + 2 x 13 = 393+ 26 = 419 ppm

Therefore, amount of [tex]CO_2[/tex] concentration in 2025 is 419 ppm

(c) give y = 400 ppm and x be the year then

400 = 393 + 2x

2x = 7

⇒ x = 3.5 years

Therefore after 3.5 years concentration of [tex]CO_2[/tex] is 400 ppm

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