B. Carbon dioxide is a product of the combustion fossil fuels, and it can lead to global climate change when released into the atmosphere.
Explanation:
Environmental problems associated with the combustion of fossil fuels in power generation mostly lies on the production of carbon dioxide which can seriously impact the climate.
Carbon dioxide is an effluent produced in the combustion process. This gas is a greenhouse gas.
Greenhouse gases are very pivotal in keeping and maintaining the temperature of the earth.
When the concentration of these gases rises anomalously beyond the normal levels, they become very dangerous.
They simply trap more heat from escaping and the temperature of the earth rises abnormally.