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📚 Class VI Science 📘 NCERT Solutions Ch 11 - Nature\'s Treasures

Class VI NCERT solutions Nature\'s Treasures

Class VI Science • Curiosity

🌍 Chapter 11: Nature\'s Treasures

NCERT Solutions — Complete Question & Answer Guide

UNIQUE STUDY POINT BY SUMEET SAHU | uniquestudyonline.com

📌 Key Concepts

✦ Natural resources: materials from nature (air, water, sunlight, soil, minerals)

✦ Renewable: replenished naturally (sunlight, wind, water)

✦ Non-renewable: limited, can\'t be replaced quickly (coal, petroleum, natural gas)

✦ Air: ~78% Nitrogen, ~21% Oxygen, ~1% other gases

✦ Only ~3% of Earth\'s water is fresh water

✦ Fossil fuels formed from dead organisms over millions of years

✦ Sun is the ultimate source of energy

✦ Conservation of resources is essential for future generations

📝 Let Us Enhance Our Learning

Q1 What are natural resources?
ANSWER

Natural Resources

Materials from nature useful for living beings — not made by humans. Examples: Air, water, sunlight, soil, minerals, forests, fossil fuels.

Q2 Differentiate renewable and non-renewable resources.
ANSWER
FeatureRenewableNon-Renewable
DefinitionCan be replenished naturallyLimited; can\'t be replaced quickly
AvailabilityUnlimited / regeneratedWill eventually run out
ExamplesSunlight, wind, water, forestsCoal, petroleum, natural gas
PollutionGenerally cleanCause pollution
Time to formShortMillions of years
Q3 Composition of air?
ANSWER
GasPercentage
Nitrogen~78%
Oxygen~21%
Carbon dioxide~0.04%
Other gases + water vapour + dust~1%
Q4 Why conserve water?
ANSWER

Only ~3% of Earth\'s water is fresh, most locked in ice caps. We must conserve:

  • Fix leaking taps
  • Use bucket instead of hose
  • Rainwater harvesting
  • Don\'t waste while brushing teeth
Q5 What are fossil fuels?
ANSWER

Fuels formed from remains of dead plants/animals buried underground over millions of years. Examples: Coal, petroleum, natural gas. They are non-renewable.

Q6 Why is the Sun the ultimate source of energy?
ANSWER
  • Plants use sunlight for photosynthesis
  • Animals get energy by eating plants/other animals
  • Fossil fuels formed from ancient organisms that got energy from Sun
  • Wind & water cycle driven by Sun\'s heat
Q7 How is soil formed?
ANSWER
  1. Physical weathering: Rocks break from temperature changes, wind, water
  2. Chemical weathering: Rain dissolves rock parts
  3. Biological weathering: Plant roots break rocks

Broken rock + humus (decayed matter) = soil.

Q8 Ways to conserve natural resources?
ANSWER
  • Reduce, Reuse, Recycle
  • Save water & electricity
  • Plant trees
  • Use renewable energy (solar, wind)
  • Avoid pollution
  • Use public transport

UNIQUE STUDY POINT BY SUMEET SAHU

Amitesh Nagar, Indore, Madhya Pradesh | uniquestudyonline.com

📖 Unique Study Point by Sumeet Sahu | Free Study Materials for Class VI-X

📍 Amitesh Nagar, Indore, MP | uniquestudyonline.com