In which of the following case Supreme Court held that the Preamble is not a part of Indian Constitution? 

To whom can a case of dispute in the election of the President of India be referred to? 

The central control of respiratory activity in human body is exercised by 

Plants get water through the roots because of, 

A person having blood type B could safely donate blood to persons with blood types 

Literal meaning of the term “Homo Sapiens” is " 

Which carbohydrate is used in silvering of mirrors?

Which of the following is/are not an artificial lake?
1- Govind Sagar
2- Chilka lake
3- Naini lake
4- Bhimtal lake