Group ‘A’ | Group ‘B’ | ||
(1) | Carbon dioxide | (a) | Generation of soil |
(2) | Oxygen | (b) | Rain |
(3) | Water vapour | (c) | Plants and food production |
(4) | Microbes | (d) | Combustion |
Group ‘A’ | Group ‘B’ | ||
(1) | Carbon dioxide | (c) | Plants and food production |
(2) | Oxygen | (d) | Combustion |
(3) | Water vapour | (b) | Rain |
(4) | Microbes | (a) | Generation of soil |