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7= petroleum is called black gold because it is very precious fossil fuel like the gold
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6. ACID RAIN-
Acid rain is defined as rainfall made so acidic by atmospheric pollution that it causes environmental harm, chiefly to forests and lakes.
The main cause is the industrial burning of coal and other fossil fuels, the waste gases from which contain sulphur and nitrogen oxides which combine with atmospheric water to form acids.
3. Disadvantages of using fossil fuels-
Fossil fuels are non-renewable energy resources. Their supply is limited and they will eventually run out.
Fossil fuels release carbon dioxide when they burn, which adds to the greenhouse effect and increases global warming.
Burning of fuels realises toxic fumes which causes many health related issues.
4. Petroleum refining processes are the chemical engineering processes and other facilities used in petroleum refineries (also referred to as oil refineries) to transform crude oil into useful products such as liquefied petroleum gas (LPG), gasoline or petrol, kerosene, jet fuel, diesel oil and fuel oils.
Acid rain is defined as rainfall made so acidic by atmospheric pollution that it causes environmental harm, chiefly to forests and lakes.
The main cause is the industrial burning of coal and other fossil fuels, the waste gases from which contain sulphur and nitrogen oxides which combine with atmospheric water to form acids.
3. Disadvantages of using fossil fuels-
Fossil fuels are non-renewable energy resources. Their supply is limited and they will eventually run out.
Fossil fuels release carbon dioxide when they burn, which adds to the greenhouse effect and increases global warming.
Burning of fuels realises toxic fumes which causes many health related issues.
4. Petroleum refining processes are the chemical engineering processes and other facilities used in petroleum refineries (also referred to as oil refineries) to transform crude oil into useful products such as liquefied petroleum gas (LPG), gasoline or petrol, kerosene, jet fuel, diesel oil and fuel oils.
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