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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 exam-ready
Which of the following correctly identifies the structural protection provided to the brain and spinal cord respectively?
  1. A Vertebral column for the brain; bony box for the spinal cord
  2. B Fluid-filled balloon only for both
  3. C Bony box and fluid-filled balloon for the brain; vertebral column for the spinal cord
  4. D Cartilage rings for the brain; fluid-filled balloon for the spinal cord
Generated by claude-sonnet-4-6 · 2026-06-26 01:00 · grounding rag
Model Answer

Option C — The brain is protected by a bony box (skull) and a fluid-filled balloon (for shock absorption); the spinal cord is protected by the vertebral column.

Explanation

The passage (6.1.3) explicitly states: brain sits inside a bony box, further protected by a fluid-filled balloon; the vertebral column protects the spinal cord. Options A and D reverse or incorrectly assign these structures. Examiners expect both protective structures for the brain to be identified for full credit.

Source: Chapter 6, Section 6.1.3 — How are these Tissues protected?

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.