AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Q1.[2]deepinitial-understanding
The text draws a comparison between the removal of CO₂ in lungs and the removal of nitrogenous waste in kidneys. What is the common principle underlying both processes?
Previous-year CBSE Grade 10 board exam questions, organised by
subject and chapter, each with a model answer — free to read and print.