Assertion (A): Human body produces highly toxic substances, which if not eliminated may cause death.  

Reason (R): Excretory substances remove nitrogenous waste from the body.  




  • Excretion is the process which involves the removal of harmful metabolic wastes from the  body.
  • If these harmful wastes are not removed from the body, then it may cause the death of the organism.  
  • Excretory substances include amino acids, urea, uric acid, carbon dioxide, water, and ammonia .
  • They remove nitrogenous waste from the body.

The Human Excretory System-01.jpg


  • The assertion is True
  • The reason is True

But the reason is not the correct explanation of the assertion

So, the correct answer is (b)

  1. Class 10
  2. Chapter 6 Class 10 - Life Processes (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo