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?

There is increase of 4.255 in the amount of carbon in the atmosphere.

Step-by-step explanation:

Since we have given that

Concentration of carbon in Earth's atmosphere in 1800 = 280 ppm

Concentration of carbon in Earth's atmosphere in 2015 = 399 ppm

We need to find the percentage increase in the amount of carbon in the atmosphere.

So, Difference = 399-280 = 119 ppm

so, percentage increase in the amount of carbon is given by

Hence, there is increase of 4.255 in the amount of carbon in the atmosphere.

4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4