Submitted by examrobotsa on Thu, 01/01/1970 - 05:30 Which of the following are sources of methane, a greenhouse gas ? 1. Domestic animals 2. Coal mining 3. Wetlands Select the correct answer using the code given below :1 and 2 only 2 only1 and 3 only1, 2 and 3stats: 0,3992,680,160,48,472,3992