Saved Bookmarks
| 1. |
Name the major constituent of biogas. Write the properties of biogas which make it a good fuel. ii. Name the two devices that work using heat energy of the sun. |
|
Answer» Solution :(i) Methane/`CH_(4)` Leaves no residue LIKE ash. It burns without SMOKE. Its heating capacity is high. Bio-gas is ALSO used for lighting. (ii) Solar WATER heater. Solar cooker. |
|