Before the industrial revolution in 1800 the concentration of carbon in earth’s atmo- sphere was 280 ppm. the concentration in 2015 was 399 ppm. what is the percent increase in the amount of carbon in the atmosphere?

The percent increase in the amount of carbon in the atmosphere is 42.5% .

Step-by-step explanation:

Given : In 1800 the concentration of carbon in Earth’s atmosphere was 280 ppm.

The concentration in 2015 was 399 ppm.

To Find : What is the percent increase in the amount of carbon in the atmosphere?

Solution:

The concentration of carbon in Earth’s atmosphere in 1800 = 280 ppm

The concentration in 2015 was 399 ppm.

Change in amount of carbon = 399-280 = 119 ppm

Percent increase =

Percent increase =

Percent increase =

Hence the percent increase in the amount of carbon in the atmosphere is 42.5% .

the answer is 62