In which of the following activities silicon carbide is used?
A). Making cement and glass
B). Disinfecting water of ponds
C). Cutting very hard substances
D). Making casts for statues
Cutting very hard substances
Cutting very hard substances.
3. The cathode of a lead storage battery is made up of
4. When there are two electrons in the same orbital they have:
6. On which of the following techniques photo state machine works ?
8. The metal used to make lightning conductors is
9. A pond of water appears less deep due to
10. The youngest layer of secondaryh1oem in woody dicot stem is located