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प्रश्न
Name the products of combustion of fossil fuels like coal and petroleum products. How do they affect us and our environment?
उत्तर
Carbon dioxide, sulphur dioxide, nitrogen oxide and water are produced by combustion of fossil fuels like coal and petroleum products. Their incomplete combustion produces carbon monoxide.
All of them, except water, are harmful for us and our environment. For example, sulphur oxide and nitrogen oxide, when mixed with water, cause acid rains. Increase in the carbon dioxide concentration in air causes greenhouse effect.
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संबंधित प्रश्न
How can you as an individual contribute or make a difference to the management of coal and petroleum
Process of separation of different constituents from petroleum is called ______.
Choose one term from the following which include all others :
coal, natural gas, fossil fuels, petroleum
There are two important fuels A and B both of which are extracted from deep inside the earth. Fuel A is a thick, dark, foul smelling liquid whereas fuel B is a black solid. Combustion of both the fuels produces products, C, D, E and F. The product C makes the rainwater only slightly acidic but it is mainly responsible for causing global warming. The product D is neither acidic nor basic. It is harmless and does not affect the environment in any way. Both E and F attack breathing system of humans and are mainly responsible for causing acid rain. In addition to combustion of fuels A and B, the product F is also formed when lightning occurs in the sky.
(a) What are (i) fuel A, and (ii) fuel B?
(b) Name (i) C (ii) D (iii) E, and (iv) F
(c) What is the process of formation of F during lightning known as?
(d) Which fuel is supposed to be exhausted sooner : A or B?
(e) Which fuel is mostly used for generating electricity at thermal power plants?
While discussing about coal and petroleum a teacher told his students about PCRA's (Petroleum Conservation Research Association) guidelines to save the fossil fuels while driving vehicles. Deepa was going to her school with her mother who was driving car. At the traffic signal, when the light was red, Deepa suggested her mother to switch of the engine.
After reading the above passage, answer the following questions :
(a) Fossil fuels are natural resources, then why do we need to conserve them?
(b) List any two ways of saving the fossil fuels.
(c) State two values exhibited to Deepa.
List the products of combustion of fossil fuels. What are their adverse effects on the environment?
Fill in the blanks in the following sentence.
Petroleum, ______ and ______ are fossil fuels.
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Umpetlore is a fossil fuel.
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Keenrose is a fuel used in jet crafts.
Give reason for the following:
Petroleum is considered a harmful source of energy.
