Which of the following produces greenhouse gases?Select one:a.digestive processes in cowsb.burning fossil fuelc.all of the aboved.automobile pollution

The correct answer is c. all of the above. This is because:

a. Digestive processes in cows: Cows produce methane, a potent greenhouse gas, as part of their digestion process. This is released into the atmosphere when they burp or pass gas.

b. Burning fossil fuels: When we burn fossil fuels like coal, oil, and natural gas for energy, they release carbon dioxide into the atmosphere. Carbon dioxide is a major greenhouse gas, trapping heat and contributing to global warming.

d. Automobile pollution: Cars and trucks also emit carbon dioxide when they burn gasoline or diesel fuel. In addition, they release nitrous oxide, another potent greenhouse gas.

So, all of the options listed contribute to the production of greenhouse gases.