📚 CBSE Grade-10 Study Guide
HomeSocial Science (087) (AI practice)

Social Science (087) — AI-generated practice question

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

Q1. [2] straightforward exam-ready
What is 'Life Expectancy at birth' and what does it tell us about the development of a country?
Generated by claude-sonnet-4-6 · 2026-06-26 13:20 · grounding rag
Model Answer

Life Expectancy at birth denotes the average expected length of life of a person at the time of birth.

It tells us about the health status of a country's people. A higher life expectancy indicates better healthcare, nutrition, and living conditions, reflecting a higher level of development. For example, Sri Lanka has a life expectancy of 76.6 years and ranks 78th on the HDI, while India has 67.7 years and ranks 134th.

Source: Human Development Report — Chapter 1, Table 1.6 & Notes

---

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