|
Why is biogas a better fuel than animal dung cakes?
|
|
0
|
5659
|
March 16, 2018
|
|
What causes the wind to blow?
|
|
0
|
1197
|
March 16, 2018
|
|
State the important uses of solar cells
|
|
0
|
3357
|
March 16, 2018
|
|
Explain solar cell panel
|
|
0
|
7921
|
March 16, 2018
|
|
Explain why only a small part of the solar energy that strikes the upper regions of atmosphere reaches the surface of the Earth
|
|
0
|
2145
|
March 16, 2018
|
|
Why is charcoal considered a better fuel than wood?
|
|
0
|
1566
|
March 16, 2018
|
|
Differentiate between box-type solar cooker and spherical reflector type solar cooker
|
|
0
|
2754
|
March 16, 2018
|
|
What are the environmental consequences of using fossil fuels?
|
|
0
|
4862
|
March 16, 2018
|
|
What is biogas? Describe the working of a biogas plant with the help of a labelled diagram. S'
|
|
0
|
34585
|
March 16, 2018
|
|
Distinguish between renewable and non-renewable sources of energy
|
|
0
|
4481
|
March 16, 2018
|
|
Give the construction and working of a solar cooker
|
|
0
|
36205
|
March 16, 2018
|
|
Biogas is considered to be a boon to the farmers. Give reasons
|
|
0
|
10673
|
March 16, 2018
|
|
Describe the steps involved in obtaining biogas and explain what is meant by anaerobic decomposition
|
|
0
|
9236
|
March 16, 2018
|
|
Name the device used to convert solar energy into heat, and solar energy into electricity Explain the principle of working of a windmill
|
|
0
|
3636
|
March 16, 2018
|
|
What is the importance of hydro power plants in India? Describe how electric energy is generated in such plants
|
|
0
|
3648
|
March 16, 2018
|
|
Mention any two advantages and two disadvantages of producing hydroelectricity by building dams on rivers
|
|
0
|
4263
|
March 16, 2018
|
|
Explain how the energy of flowing water is related to solar energy
|
|
0
|
2984
|
March 16, 2018
|