Lakhmir Singh & Manjit Kaur - Physics

Book: Lakhmir Singh & Manjit Kaur - Physics

Chapter: 3. Sources of Energy

Subject: Physics - Class 10th

Q. No. 17 of Short Answer Type Questions-Pg-148

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17

What are the two ways in which cow-dung can be used as a fuel? Which of them is better and why?

Two ways in which cow-dung can be used as a fuel are:

a) In the form of cow-dung cakes, which can be used directly as a fuel.


b) By preparing biogas from cow-dung.


Chapter Exercises

Very Short Answer Type Questions-Pg-121
Very Short Answer Type Questions-Pg-130
Very Short Answer Type Questions-Pg-140
Very Short Answer Type Questions-Pg-148
Very Short Answer Type Questions-Pg-156
Very Short Answer Type Questions-Pg-161
Short Answer Type Questions-Pg-122
Short Answer Type Questions-Pg-131
Short Answer Type Questions-Pg-140
Short Answer Type Questions-Pg-148
Short Answer Type Questions-Pg-157
Short Answer Type Questions-Pg-161
Questions Based on High Order Thinking Skills (HOTS)-Pg-123
Questions Based on High Order Thinking Skills (HOTS)-Pg-132
Questions Based on High Order Thinking Skills (HOTS)-Pg-142
Questions Based on High Order Thinking Skills (HOTS)-Pg-150
Questions Based on High Order Thinking Skills (HOTS)-Pg-159
Long Answer Type Questions-Pg-122
Long Answer Type Questions-Pg-131
Long Answer Type Questions-Pg-141
Long Answer Type Questions-Pg-149
Long Answer Type Questions-Pg-157
Multiple Choice Questions (MCQs)-Pg-122
Multiple Choice Questions (MCQs)-Pg-131
Multiple Choice Questions (MCQs)-Pg-141
Multiple Choice Questions (MCQs)-Pg-149
Multiple Choice Questions (MCQs)-Pg-158
Multiple Choice Questions (MCQs)-Pg-161

More Exercise Questions

16

What is biomass? Give three examples of biomass.
16

Name the biomass which is still widely used as a source of heat energy in many households of country.
17

What are the two ways in which cow-dung can be used as a fuel? Which of them is better and why?
18

How is charcoal prepared? Explain why, charcoal is a better fuel than wood.
19

Compare and contrast biomass and hydroelectricity as sources of energy.
20

Why biogas is considered an ideal fuel for domestic use?
21

Explain how tidal energy can be used to generate electricity.
21

Why is tidal energy not likely to be a potential source of energy?
22

State two ways in which the energy of sea-waves can be harnessed.
23

What is meant by ocean thermal energy? Explain how ocean thermal energy can be used to generate electricity.
24

What are the limitations of energy that can be harnessed from the sea ?
25

Suggest a safe and efficient method for the disposal of bio wastes and sewage materials. How is this method advantageous to us?
26

Which of the following sources of energy are not derived from the sun?

Biomass, Wind, Ocean thermal energy, Geothermal energy, Nuclear fuels, Hydroelectricity, Wave energy, Coal, Petroleum, Tidal energy

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