Science & Its Pedagogy
Natural Resources (VI–VIII)
Science & Pedagogy
Paper II
3 topics
What this chapter covers
The 3 topics below make up Natural Resources (VI–VIII) in the CTET syllabus. Open any topic for notes, solved examples and a practice MCQ test.
1Air, Water & Soil
2Conservation & Pollution
3Coal, Petroleum & Sources of Energy
Study material & tests
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Concept notes, key points, solved examples and hint-guided practice for every topic.
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🎯 Topic MCQ tests
8 auto-graded CTET-style questions per topic, with full explanations.
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📝 Chapter test
25 fresh mixed-difficulty questions, timed, with solutions.
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Key Concepts — Quick Reference
This chapter
Air, Water & Soil — the core facts
| Composition of air | ~78% Nitrogen · ~21% Oxygen · ~1% others (CO₂, argon, water vapour) |
|---|---|
| Water cycle | Evaporation → Condensation → Precipitation (then collection/run-off) |
| Soil profile | Topsoil (humus-rich) → Subsoil → Parent rock; formed by weathering |
| Soil types | Sandy (big particles, drains fast) · Clayey (fine, holds water) · Loamy (best for crops) |
Energy & Conservation
| Renewable (inexhaustible) | Sun, wind, water, biomass — replenished naturally |
|---|---|
| Non-renewable (exhaustible) | Coal, petroleum, natural gas — fossil fuels, finite |
| Fossil fuels | Formed from dead plants/animals buried for millions of years |
| The 3 Rs | Reduce · Reuse · Recycle — the conservation mantra |