Recent Searches
No Recent Searches Found

8 9 10 11 12 13 14 15 16 A 16 B 17

Lakhmir Singh & Manjit Kaur - Physics

Very Short Answer Type Questions-Pg-121

Short Answer Type Questions-Pg-122

8 9 10 11 12 13 14 15 16 A 16 B 17

Long Answer Type Questions-Pg-122

Multiple Choice Questions (MCQs)-Pg-122

19 20 21 22 23 24 25 26 27 28 29

Questions Based on High Order Thinking Skills (HOTS)-Pg-123

30 31 32 33 34 35

Very Short Answer Type Questions-Pg-130

1 2 3 4 5 6 7 8 9 10 11 12 13

Short Answer Type Questions-Pg-131

14 15 16 17 18 19 20 21 22 23

Long Answer Type Questions-Pg-131

24 A 24 B 24 C 24 D 24 E

Multiple Choice Questions (MCQs)-Pg-131

25 26 27 28 29 30 31 32 33 34 35 36

Questions Based on High Order Thinking Skills (HOTS)-Pg-132

Very Short Answer Type Questions-Pg-140

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Short Answer Type Questions-Pg-140

15 A 15 B 16 17 18 A 18 B 19 20 A 20 B 20 C 21 22 23 A 23 B 24 25

Long Answer Type Questions-Pg-141

26 A 26 B 26 C 27 A 27 B 27 C 28 A 28 B 28 C 28 D

Multiple Choice Questions (MCQs)-Pg-141

29 30 31 32 33 34 35 36 37 38

Questions Based on High Order Thinking Skills (HOTS)-Pg-142

39 40 41 42 A 42 B

Very Short Answer Type Questions-Pg-148

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Short Answer Type Questions-Pg-148

16 A 16 B 17 18 19 20 21 A 21 B 22 23 24 25 26

Long Answer Type Questions-Pg-149

27 A 27 B 27 C 27 D 27 E 28 A 28 B 28 C 28 D 28 E

Multiple Choice Questions (MCQs)-Pg-149

29 30 31 32 33 34 35 36 37 38 39 40 41

Questions Based on High Order Thinking Skills (HOTS)-Pg-150

Very Short Answer Type Questions-Pg-156

1 2 3 4 5 6 7 8 9 10 11 12 13

Short Answer Type Questions-Pg-157

14 15 A 15 B 16 17 A 17 B 18 A 18 B 18 C 19 A 19 B 19 C 20 A 20 B 21 22 23 24 25

Long Answer Type Questions-Pg-157

26 A 26 B 26 C 26 D 27 A 27 B 27 C 27 D 27 E

Multiple Choice Questions (MCQs)-Pg-158

28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

Questions Based on High Order Thinking Skills (HOTS)-Pg-159

46 47 48 49 49 50

Very Short Answer Type Questions-Pg-161

Short Answer Type Questions-Pg-161

Multiple Choice Questions (MCQs)-Pg-161

Q. 15

Name two sources of energy which you consider to be non-renewable. Give reason for your choice.

Class 10th Lakhmir Singh & Manjit Kaur - Physics 3. Sources of Energy

Answer :

Two examples of non renewable sources are-

a) Coal: It is produced from dead remains of plants and animals that remain buried under the earth's crust for millions of years. It takes millions of years to produce coal. Industrialization has increased the demand of coal. However, coal cannot replenish within a short period of time. Hence, it is a non-renewable or exhaustible source of energy.

b) Wood: It is obtained from forests. Deforestation at a faster rate has caused a reduction in the number of forests on the Earth. It takes hundreds of years to grow a forest. If deforestation is continued at this rate, then there would be no wood left on the Earth. Hence, wood is an exhaustible source of energy.

Rate this question :

How useful is this solution?

We strive to provide quality solutions. Please rate us to serve you better.

PREVIOUSName two sources of energy that you think are renewable. Give reason for your choice.NEXTClassify the following into renewable and non-renewable sources of energy:Coal, Wind, Tides, Petroleum, Wood, Natural gas

RELATED QUESTIONS :

Arrange the following fuels in order of increasing calorific values (keeping the fuels with lowest calorific value first):

LPG, Coal, Alcohol, Dung cakes, Diesel

Lakhmir Singh & Manjit Kaur - Physics

Arrange the following fuels in the order of decreasing calorific values (keeping the fuels with highest calorific value first):

Biogas, Kerosene, Wood, Petrol, Hydrogen gas, Methane

Lakhmir Singh & Manjit Kaur - Physics

Explain why, natural gas is considered to be a good fuel.

Lakhmir Singh & Manjit Kaur - Physics

The calorific values of three fuels A, B and C are 33 KJ/g, 150 KJ/g, respectively. A is solid, B is liquid and C is a gas at room temperature. On combustion, both A and B produces carbon dioxide while C explodes forming steam. B and C leave no residue after combustion while A leaves behind some solid residue. Which one of the three fuels is the most ideal? Give two reasons to support your answer.

Lakhmir Singh & Manjit Kaur - Physics

Name the product of petroleum that is used to drive heavy vehicles.

Lakhmir Singh & Manjit Kaur - Physics

Which one of the following is not renewable energy technology?

Lakhmir Singh & Manjit Kaur - Physics

One of the following is not a characteristic of a good fuel. This is:

Lakhmir Singh & Manjit Kaur - Physics

Which of the following is more environment friendly ?

Lakhmir Singh & Manjit Kaur - Physics

Why is LPG considered a better fuel than coal for cooking purposes?

Other Questions - Science

Out of these renewable sources of energy is ________
a) coal
b) rock oil
c) petrol
d) wind

Other Questions - Science