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प्रश्न
What is a source of energy? What are the two main categories of the sources of energy?
उत्तर
A source of energy is that which provides a required amount of energy in a convenient form for a long time.
There are basically two types of sources of energy:
a) Renewable source of energy
b) Non-renewable source of energy
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संबंधित प्रश्न
Which of the following is not a renewable source of energy?
(a) wind
(b) flowing water
(c) fossil fuels
(d) fuel wood
What is meant by conventional sources of energy? Write the names of two conventional sources of energy.
The product of petroleum used to drive heavy vehicles like trucks is:
(a) petrol
(b) kerosene
(c) diesel
(d) carbon oxide
Compare the sun and the fossil fuels as the sources of energy.
What is the function of anaerobic micro-organisms such as anaerobic bacteria in a biogas plant?
Fill in the following blank with suitable word:
Tidal waves build up and recede ........... a day.
Most of the sources of energy that we sue represent stored solar energy. Which of the following is not ultimately derived from the sun's energy?
(a) wind energy
(b) geothermal energy
(c) fossil fuels
(d) biomass
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 the main difference between renewable and non-renewable energy 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.
