Answer:
Global warming
Step-by-step explanation:
Fossil fuels are formed from the decomposition of the remains of dead plants and animals and can be burned to generate power for electricity and even transportation. Examples of fossil fuels are;
i. natural gas
ii. coal
iii. fuel oil.
When fossil fuels are burned certain harmful substances such as sulphur dioxide, carbondioxide, and methane are released into the environment. These substances (gases) are the greenhouse gases and may cause global warming.
Therefore it could be concluded that the largest suspected environmental problem associated with the burning of fossil fuels is green house effect which in turn causes global warming.
Global warming is a situation whereby there is an abnormal rise in the temperature of the earth's atmosphere caused by releases of green house gases such as carbondioxide. In global warming the ozone layer is basically depleted by the green house gases.