1. What is meant by 'naturalresources'?
2. Why should fossil fuels be conserved?
3. What are the useful fractions obtained by the fractional distillation of petroleum?
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Answers
Answer:
1]
Explanation:
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1. Natural resources are materials from the Earth that are used to support life and meet people's needs. Any natural substance that humans use can be considered a natural resource. Oil, coal,natural gas, metals, stone and sand are natural resources. Other natural resources are air, sunlight, soil and water.
2. Burning petroleum, coal and natural gas fills the air with harmful pollutants, including nitrogen oxides, sulfur dioxide, carbon dioxide, ozone and a host of hydrocarbons. ... That is probably the most compelling reason to conserve fossil fuels.
3. Fractional distillation is used in oilrefineries to separate the complex mixture into fractions that contain similar boiling points and therefore similar molecular weights and properties. Gasoline, diesel fuel, kerosene, and jet fuel are some of the different fractions produced by an oilrefinery.
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