Presence of nitrogen in waste water sample is due to decomposition of;        &n…

The rise and fall method of levelling provides a complete check on 

रास्ट्रियनिजामती दिवस कहिले मनाइन्छ? 

Airport elevation is the reduced level (RL) above mean sea level of:  

देहायको कथनबारे बिचार गर्नुहोस:i)ब्रेल लिपिको खोज तथा आबिष्कार लुइस ब्रेलले गरेका हुन् ii)ब्रेल लिपिले आखा नदेख्ने …

The portion of a brick cut across the width, is called 

5:124::7:?     

In reciprocal levelling, the error which is not completely eliminated, is due to