A perched aquifer generally occurs 

अरु भन्दा फरक पत्ता लगाउनुहोस ;       

Beaufort scale is used to determine; 

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

The garbage is not a rubbish but it is 

आधुनिक ब्यबस्थापनको पिता भनेर कसलाई चिनिन्छ? 

साइकलका आविष्कार कसले गरेका हुन् ? 

Which of the following diagrams indicates the best relation between Women, Mothers and Engineers?