Question

1. Which of the following is
is the
correct percentage of the two (out of the total of
4) green house gases that contribute to the total
global warming?
(1) N20 6%, CO2 86%
(2) Methane 20%, N O 18 %
(3) CFCs 14%, Methane 20 %
(4) CO, 40%, CFCs 30%​

Answer 1

Answer:

(3) CFCs 20%, Methane 14%

Explanation:

that's because Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and halons destroy the earth's protective ozone layer, which shields the earth from harmful ultraviolet (UV-B) rays generated from the sun. CFCs and HCFCs also warm the lower atmosphere of the earth, changing global climate.

and the methane cause

Methane is a powerful greenhouse gas that traps heat 28 times more effectively than carbon dioxide over a 100-year timescale.  After carbon dioxide, methane was responsible for about 23% of climate change in the 20th century. Methane is produced under conditions where little to no oxygen is available.

so ,they are in small quantities but  green house gases that contribute to the total  global warming some are harmful

$\LARGE\fbox{HOPE IT HELPS}$

Answer 2

option c is the correct answer