Select the most appropriate synonym of the given

What is a fertiliser that supplies two or more than two primary nutrients called?

When a metal reacts with dilute hydrochloric acid, it produces:

What is the focal length of a plane mirror?

_________ is a technique where the plants are grown with their roots suspended in the air.

What is the main cause of emphysema?  

Which of the following is true about the digestion process of the Paramecium ?

I. Food is taken in at a specific spot.

Flight Recorder is technically called :

Which of these is not a function of proteins?

Which of the following statements for the given chemical reaction is true?

Fe₂ O₃ + 2Al  →  Al₂ O₃  + 2Fe

Which of the following types of coal is called a brown coal among the following?