|
Which part of the solar cooker is responsible for greenhouse effect?
|
|
0
|
5662
|
July 8, 2016
|
|
The surface area of a concentrator type solar heater is 5 $m^{2}$
|
|
1
|
3239
|
July 8, 2016
|
|
Why is their need to harness non-conventional sources of energy? Give two main reasons
|
|
1
|
16200
|
July 8, 2016
|
|
How is wood charcoal made? Write one advantage of using charcoal over wood as a domestic fuel
|
|
0
|
1573
|
July 8, 2016
|
|
How do technological inputs improve the efficiency of bio-mass fuel?
|
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0
|
3809
|
July 8, 2016
|
|
It is advantageous to convert bio-mass into a bio-gas rather than burning bio-mass directly. Why?
|
|
0
|
1701
|
July 8, 2016
|
|
How does construction of dams across the river get linked with the production of greenhouse gases?
|
|
0
|
3516
|
July 8, 2016
|
|
You have wood, coal, kerosene and LPG. Which one source of energy would you use for cooking
|
|
1
|
2787
|
July 8, 2016
|
|
Firewood is a conventional fuel. List any four reasons for replacing it with alternate sources of energy
|
|
0
|
5279
|
July 8, 2016
|
|
Though wood is a renewable source of energy but the use of wood as a fuel is not a wise decision. Explain
|
|
0
|
2544
|
July 8, 2016
|
|
List two ways in which animal dung is used as a fuel and compare both the ways
|
|
0
|
2377
|
July 8, 2016
|