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प्रश्न
Name a few major producers of petroleum in the world.
उत्तर
The main oil-producing areas are the Gulf countries including Saudi Arabia, Iraq, Iran, the USA, Venezuela, Algeria, and Russia.
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संबंधित प्रश्न
On what basis would you classify energy sources as
(a) renewable and non-renewable?
(b) exhaustible and inexhaustible?
Are the options given in (a) and (b) the same?
Name two sources of energy that you think are renewable. Give reason for your choice.
Which of the following is not a renewable source of energy?
(a) wind
(b) flowing water
(c) fossil fuels
(d) fuel wood
Describe how fossil fuels were formed.
Which of the following is not a fossil source of energy?
(a) kerosene oil
(b) cow-dung cakes
(c) CNG
(d) coal
The energy in petrol originally came from the sun. Explain how it got into petrol.
Name the constituents of biogas.
Describe the construction and working of a biogas plant with the help of a labelled diagram.
The fuel which is not obtained from biomass is:
(a) firewood
(b) cow-dung cakes
(c) coke
(d) charcoal
Which of the following is ultimately not derived from the sun's energy (or solar energy)?
(a) wind energy
(b) nuclear energy
(c) biomass energy
(d) ocean thermal energy
The source of energy of the sun is:
(a) conversion of hydrogen gas into helium
(b) conversion of carbon fuel into carbon dioxide
(c) burning of hydrogen gas present in the sun
(d) disintegration of uranium into barium and krypton
The fossil fuel whose known reserves in the earth are expected to last for the minimum period is:
(a) coal
(b) uranium
(c) petroleum
(d) natural gas
What is meant by the renewable and non-renewable sources of energy? State two differences between them, giving two examples of each
State whether the following is True or False.
Coal and petroleum are renewable energy resources.
State whether the following is True or False.
Coal takes millions of years to form.
Can you tell?
What is ‘green energy’?
Who is the odd one out?
What are the environmental consequences of using fossil fuels? Suggest the steps to minimise the pollution caused by various sources of energy including non-conventional sources of energy.
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Nutsgilh is an example of inexhaustible natural resources.
Fill in the blanks and complete the story.
About 300 million years ago, the earth had dense ______ in low lying wetland areas. Due to natural processes like ______ these forests got buried under the ______ As more ______ deposited over them, they were compressed. The ______ also rose as they sank deeper and deeper. Under high ______ and high ______ , dead plants got slowly converted into coal.
