Class 8 Science Chapter 12: How Nature Works in Harmony — Important Questions & Mock Tests
Practice How Nature Works in Harmony topic-wise important questions on Trophic Levels and Producers, MCQs and 1, 2, 3 and 5 mark questions for CBSE revision.
300 Questions 23 Topics MCQs: 100 1 Mark: 50 2 Mark: 50 3 Mark: 50 5 Mark: 50
Topic-wise important and practice questions
Review question distribution across chapter topics for MCQs, 1 Mark questions, 2 Mark questions, 3 Mark questions, 5 Mark questions.
| Topic | MCQ | 1 Mark | 2 Mark | 3 Mark | 5 Mark | Total |
|---|---|---|---|---|---|---|
| Trophic Levels | 5 | 6 | 5 | 6 | 9 | 31 |
| Producers | 5 | 3 | 6 | 5 | 3 | 22 |
| Human-Made Ecosystems | 5 | 3 | 4 | 4 | 5 | 21 |
| Commensalism | 5 | 2 | 1 | 2 | 9 | 19 |
| Habitat | 5 | 2 | 6 | 5 | 1 | 19 |
| Population | 5 | 4 | 3 | 2 | 5 | 19 |
| Herbivores | 5 | 3 | 4 | 4 | 1 | 17 |
| Biotic Components | 5 | 2 | 1 | 4 | 3 | 15 |
| Mutualism | 5 | 2 | 3 | 3 | 2 | 15 |
| Parasitism | 5 | 3 | 3 | 3 | 0 | 14 |
| Aquatic Ecosystems | 5 | 3 | 3 | 1 | 1 | 13 |
| Ecosystem | 5 | 2 | 1 | 3 | 2 | 13 |
| Wildlife Corridors | 5 | 2 | 2 | 2 | 2 | 13 |
| Omnivores | 5 | 2 | 2 | 1 | 0 | 10 |
| Decomposers and Nutrient Cycling | 5 | 3 | 0 | 0 | 1 | 9 |
| Food Chain and Energy Flow | 5 | 2 | 1 | 1 | 0 | 9 |
| Decomposers | 5 | 0 | 0 | 1 | 2 | 8 |
| Food Web | 5 | 1 | 1 | 0 | 1 | 8 |
| Community | 5 | 1 | 1 | 0 | 0 | 7 |
| Abiotic Components | 5 | 1 | 0 | 0 | 0 | 6 |
| Ecosystem Interdependence | 0 | 1 | 1 | 1 | 1 | 4 |
| Ecosystem Services | 0 | 1 | 1 | 1 | 1 | 4 |
| Threats to the Sundarbans Ecosystem | 0 | 1 | 1 | 1 | 1 | 4 |