Chapter 12 – Sound – MCQs (Part 1: Q1–Q25) Q1. Sound cannot travel through: a) Solids b) Liquids c) Vacuum d) Gases Answer: c) Vacuum 👉 Explanation: Sound requires a medium (solid, liquid, or gas) for propagation. It cannot travel in a vacuum. Q2. Which of the following is a …
Chapter 14 – Natural Resources – MCQs (Part 1: Q1–Q25) Q1. Which of the following is a non-renewable natural resource? a) Water b) Soil c) Petroleum ✅ d) Forest Answer: c) Petroleum Explanation: Petroleum cannot be replenished quickly; it is a non-renewable fossil fuel. Q2. Which is the primary source …
Chapter 13 – Why Do We Fall Ill – MCQs (Part 1: Q1–Q25) Q1. Which of the following is NOT a factor that determines health? a) Balanced diet b) Good housing c) Chronic illness d) Playing video games Answer: d) Playing video games 👉 Explanation: Balanced diet, good housing, and …
Chapter 15 – Improvement in Food Resources – MCQs (Part 1: Q1–Q25) Q1. Which of the following is not a crop improvement method? a) Hybridisation b) Mutation breeding c) Cloning ✅ d) Selection Answer: c) Cloning Explanation: Cloning is not used for crop improvement; instead, hybridisation, selection, and mutation breeding …