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प्रश्न
We read in newspapers that burning of fuels is a major cause of global warming. Explain why.
उत्तर
Burning of fuels is a major cause of global warming because they produce a lot of greenhouse gas ‘carbon dioxide’ on burning.
The earth’s atmosphere allows most of the sunlight that falls on it to pass through and heat the surface. But greenhouse gases such as carbon dioxide, methane, water vapours trap the heat radiated from earth. This leads to an increase in earth’s temperature. This is known as greenhouse effect. When concentration of greenhouse gases such as carbon dioxide increases, greenhouse effect also increases. This is known as global warming. It may cause melting of ice caps and glaciers resulting the rise in sea levels.
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संबंधित प्रश्न
How can you as an individual contribute or make a difference to the management of coal and petroleum
Name a clean gaseous fuel other than LPG and natural gas.
Name the products of combustion of fossil fuels like coal and petroleum products. How do they affect us and our environment?
Which of the following combination of terms has no fossil fuel?
(a) wind, ocean, coke
(b) kerosene, tide, wind
(c) wood, wind, sun
(d) petrol, wood, sun
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.
Write two disadvantages of burning fossil fuels.
The term petroleum means ________
Which of the following is not a constituent of petroleum?
Excessive burning of fossil fuels is a major cause of ______.
Crude oil is used as a sealant for waterproofing various surfaces.
