The word 'vital' is __

Adjective of the word 'float' is --- 'blood' শব্দটির adjective হবে - The old man died penniless. Here the underlined word is a/an- Examinations are frightening." Here 'Frightening' is Select the sentence is which 'down' is an adjective: Which pen do you want? Here which is a/an— Mr. Rohan is very friendly. Here 'friendly' is- 'Please write to me at the above address. The word 'above' in this sentence in a/an - Which is adjective? কোনটি Adjective?