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Science (086) — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [1] straightforward initial-understanding
Which of the following correctly pairs a life process with a by-product it generates AND the system that removes that by-product?
  1. A Respiration → CO₂ → removed by the respiratory system (lungs)
  2. B Nutrition → urea → removed by the digestive system
  3. C Respiration → glucose → removed by the kidneys
  4. D Nutrition → oxygen → removed by the lungs
Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.