Class 6 Science Curiosity Solutions English Medium

NCERT Solutions Class 6 Science Curiosity English Medium

Chapter 11. Nature`s Treasures

Topic: CBSE Full Notes

Chapter 11. Nature's Treasures

Nature provides all the basic resources required for life on Earth. Air, water, sunlight, soil, forests, rocks, minerals, and fossil fuels are valuable gifts of nature. Human beings, plants, and animals depend upon these resources for survival and development. Some resources are available in abundance, while others are limited. Therefore, it is our responsibility to use natural resources wisely and conserve them for future generations.

CBSE Full Notes

These detailed notes explain the importance of natural resources, their classification, uses, conservation methods, and their role in maintaining ecological balance. The notes are prepared according to the latest NCERT Curiosity textbook and CBSE competency-based pattern.

Nature's Treasures

Everything that we obtain directly from nature and use in our daily life is called a natural resource. Nature provides resources that help us breathe, grow food, build houses, manufacture goods, generate energy, and maintain ecological balance. These valuable resources are often referred to as Nature's Treasures.

Examples of Nature's Treasures

• Air
• Water
• Sunlight
• Soil
• Forests
• Wildlife
• Rocks and Minerals
• Fossil Fuels

Air – The Invisible Resource

Air is one of the most important natural resources. Every living organism depends upon air for survival. It contains several gases mixed together. Oxygen supports respiration, while carbon dioxide is required by green plants during photosynthesis. Nitrogen plays an important role in maintaining the balance of the atmosphere and is also useful for plant growth through the nitrogen cycle.

Importance of Water

Water is essential for all living organisms. It is required for drinking, cooking, agriculture, industries, cleaning, sanitation, and many biological processes. Although nearly three-fourths of Earth's surface is covered with water, only a small fraction is available as freshwater. Hence, water should be used carefully.

Uses of Water

• Drinking and cooking.
• Irrigation of crops.
• Industrial production.
• Hydroelectric power generation.
• Cleaning and sanitation.

Water Conservation

Freshwater is a limited resource. Conserving water helps meet the needs of both present and future generations.

Methods of Water Conservation

• Rainwater harvesting.
• Repair leaking taps and pipelines.
• Reuse household water wherever possible.
• Avoid unnecessary wastage.
• Prevent water pollution.

Sun – The Ultimate Source of Energy

The Sun is the primary source of energy for almost every natural process on Earth. Green plants use sunlight to prepare food through photosynthesis. Solar energy is also used to produce electricity and heat water. Since sunlight is renewable and pollution-free, it is one of the best alternative sources of energy.

Uses of Solar Energy

• Solar cookers.
• Solar water heaters.
• Solar panels.
• Solar street lights.

Forests

Forests are one of the richest natural ecosystems on Earth. They provide habitat to numerous plants and animals while supplying oxygen, food, medicines, timber, fibres, and fuel. Forests also regulate climate, conserve biodiversity, and maintain ecological balance.

Importance of Forests

• Release oxygen.
• Absorb carbon dioxide.
• Provide habitat for wildlife.
• Prevent soil erosion.
• Maintain rainfall and climate.
• Provide medicinal plants and timber.

Forest Conservation

Large-scale cutting of forests leads to deforestation, which causes habitat destruction, climate change, and loss of biodiversity. Forest conservation is necessary to protect wildlife and maintain ecological balance.

Ways to Conserve Forests

• Afforestation.
• Prevent illegal cutting of trees.
• Control forest fires.
• Promote social forestry.
• Reduce excessive use of wood.

Soil

Soil is formed through the weathering of rocks over thousands of years. It contains minerals, organic matter, water, air, and microorganisms. Healthy soil supports agriculture and provides nutrients required for plant growth.

Importance of Soil

• Supports plant growth.
• Stores water.
• Provides habitat for microorganisms.
• Forms the basis of agriculture.

Rocks and Minerals

Rocks are naturally occurring solid materials made up of one or more minerals. Minerals are valuable substances used for manufacturing tools, machines, electrical equipment, jewellery, vehicles, and buildings.

Fossil Fuels

Coal, petroleum, and natural gas are fossil fuels formed from the remains of ancient plants and animals over millions of years. They are widely used as sources of energy but are limited in quantity and produce pollution when burned.

Uses of Fossil Fuels

• Transportation.
• Electricity generation.
• Industrial production.
• Cooking fuel.

Disadvantages

• Cause air pollution.
• Increase global warming.
• Cannot be replaced quickly.

Renewable and Non-renewable Resources

Natural resources are classified according to their availability and ability to be replaced naturally.

Conservation of Natural Resources

Conservation means using natural resources carefully so that they remain available for future generations. Responsible use of resources helps reduce pollution, conserve biodiversity, and promote sustainable development.

Methods of Conservation

• Reduce unnecessary consumption.
• Reuse materials whenever possible.
• Recycle waste products.
• Use renewable sources of energy.
• Plant more trees.
• Save electricity and water.
• Protect wildlife and forests.

Importance of Natural Resources

Natural resources are essential for maintaining life on Earth. They provide food, shelter, clothing, medicines, fuel, and raw materials for industries. Without natural resources, survival of living organisms would not be possible.

Remember These Points

Revise these important points before examinations.

• Natural resources are gifts of nature.
• Air contains about 78% nitrogen and 21% oxygen.
• The Sun is the ultimate source of energy.
• Freshwater should be conserved.
• Forests maintain biodiversity and ecological balance.
• Soil is essential for agriculture.
• Rocks are made up of minerals.
• Coal, petroleum, and natural gas are fossil fuels.
• Renewable resources can be replenished naturally.
• Non-renewable resources should be used carefully.
• Reduce, Reuse, and Recycle help conserve natural resources.
• Every individual has a responsibility to protect nature's treasures.

Chapter Summary

Nature provides valuable resources such as air, water, sunlight, forests, soil, rocks, minerals, and fossil fuels that support life on Earth. These resources should be used responsibly because many of them are limited. Conservation through afforestation, rainwater harvesting, recycling, and the use of renewable energy helps protect the environment and ensures that future generations can also benefit from nature's treasures.

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