AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Q1.[1]mediuminitial-understanding
Which organ in the human body is analogous to the kidneys in removing waste — as the kidneys remove nitrogenous waste, which organ removes CO₂ from the blood?
Previous-year CBSE Grade 10 board exam questions, organised by
subject and chapter, each with a model answer — free to read and print.