The figure shows increase in `CO_(2)` content (ppm) from 1985 to 2015 in Delhi. The peaks come in about June and the valleys in January each year. Increase in `CO_(2)` content from 1985 to 2015 is about.

Options

A. `10%`
B. `15%`
C. `20%`
D. `30%`

Answer

A

Explanation

From figure , `CO_(2)` content in `1985=318ppm`
`CO_(2)` content in `2015 = 351 ppm`
Increase in 30 years=33ppm
Percentage increase w.r.t. `1985 value = (33xx100)/(318) = 10.37%`.