|
Which part of the solar cooker is responsible for greenhouse effect?
|
|
0
|
5651
|
July 8, 2016
|
|
The surface area of a concentrator type solar heater is 5 $m^{2}$
|
|
1
|
3210
|
July 8, 2016
|
|
Why is their need to harness non-conventional sources of energy? Give two main reasons
|
|
1
|
16179
|
July 8, 2016
|
|
How is wood charcoal made? Write one advantage of using charcoal over wood as a domestic fuel
|
|
0
|
1562
|
July 8, 2016
|
|
How do technological inputs improve the efficiency of bio-mass fuel?
|
|
0
|
3804
|
July 8, 2016
|
|
It is advantageous to convert bio-mass into a bio-gas rather than burning bio-mass directly. Why?
|
|
0
|
1687
|
July 8, 2016
|
|
How does construction of dams across the river get linked with the production of greenhouse gases?
|
|
0
|
3509
|
July 8, 2016
|
|
You have wood, coal, kerosene and LPG. Which one source of energy would you use for cooking
|
|
1
|
2770
|
July 8, 2016
|
|
Firewood is a conventional fuel. List any four reasons for replacing it with alternate sources of energy
|
|
0
|
5265
|
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
|
2517
|
July 8, 2016
|
|
List two ways in which animal dung is used as a fuel and compare both the ways
|
|
0
|
2363
|
July 8, 2016
|