A. Burning fossil fuels, releasing chemicals into the atmosphere, reducing the amount of forest cover, and the rapid expansion of farming, development, and industrial activities are releasing carbon dioxide into the atmosphere and changing the balance of the climate system.
What are fossil fuels?
Fossil fuel is defined as non-renewable energy sources such as coal, coal products, natural gas, derived gas, crude oil, petroleum products and non-renewable wastes.
B. When fossil fuels are burned, they release nitrogen oxides into the atmosphere.
C. Burning of fossil fuel contribute to the formation of smog and acid rain. The most common nitrogen-related compounds emitted into the air by human activities are collectively known to as nitrogen oxides.
D. One way in which humans can reduce the production of this chemical to lessen its effect on future ecosystems is to use alternative fuels such as solar, wind or water.
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