Answer: B) global warming
Step-by-step explanation:
The burning of the fossil fuels liberates carbon dioxide and other harmful gases into the atmosphere. These gases are capable of causing greenhouse effect. As, these gases are diatomic these are capable of absorbing the light energy from sun causing the global temperature warm. The heat liberated from the terrestrial land and some energy from sun are reflected back to the space so as to prevent the earth from accumulation of excess heat energy. These gases being trapping the sunlight energy nullify the heat reflection process. Hence, increasing the global heat causing global warming.