All questions of Nature’s Treasures for Class 6 Exam

Coal is a non-renewable resource because it forms over millions of years and is available in limited amounts.

Sunlight is the primary source of energy on Earth, driving processes like photosynthesis in plants, which forms the base of most food chains.

Understanding Non-Renewable Resources
Non-renewable resources are natural resources that cannot be replenished within a human timescale. Once depleted, they are gone for millions of years.
What is Coal?
- Coal is a fossil fuel formed from the remains of ancient plants and animals.
- Over millions of years, heat and pressure transformed these remains into the carbon-rich substance we know as coal.
Formation Process
- The process begins with the accumulation of plant matter in swampy areas.
- As layers of sediment build up, the plant material is buried and subjected to extreme heat and pressure.
- This transformation process is known as coalification, leading to different types of coal (anthracite, bituminous, sub-bituminous, and lignite).
Importance of Coal
- Coal is a major source of energy worldwide, used primarily for electricity generation and industrial processes.
- It is a significant contributor to carbon emissions, making it a topic of environmental concern in the context of climate change.
Comparison with Other Options
- Solar energy, freshwater, and wind energy are all renewable resources. They can be replenished naturally within a short timeframe.
- In contrast, coal, being a fossil fuel, takes millions of years to form, thus categorizing it as non-renewable.
Conclusion
Understanding that coal is a non-renewable resource formed from ancient organic matter highlights its importance and the need for sustainable energy alternatives.

Introduction to the Chipko Movement
The Chipko Movement, which began in the 1970s in India, is a significant environmental movement that aimed to protect trees and forests from deforestation.
Background of the Movement
- The movement emerged in response to the increasing rates of deforestation in the Himalayas for commercial purposes.
- Local communities, particularly women, recognized the importance of trees for their livelihoods and the environment.
Women’s Role in the Chipko Movement
- Women were pivotal in the Chipko Movement, showcasing their determination to protect their natural resources.
- They physically hugged trees to prevent them from being cut down, symbolizing their commitment to conservation.
Key Events
- The first major event occurred in 1973 in the village of Reni, Uttarakhand, where women embraced trees threatened by logging.
- Their efforts garnered national attention and inspired similar movements across India.
Impact of the Chipko Movement
- The movement successfully led to a ban on tree felling in certain areas and heightened awareness about environmental conservation.
- It empowered local communities, especially women, by giving them a voice in environmental issues.
Legacy of the Chipko Movement
- The Chipko Movement is considered a pioneer in grassroots environmental activism.
- It has inspired global environmental movements, highlighting the importance of sustainable practices and community involvement.
The Chipko Movement stands as a remarkable example of how local communities can unite to protect their environment, demonstrating the power of collective action, especially by women.

What Are Fossil Fuels?
Fossil fuels are natural resources that have formed over millions of years from the decomposed remains of ancient plants and animals. Understanding their origin helps us appreciate their significance in energy production today.
Formation Process
- Fossil fuels are created through a process called bio-geochemical transformation.
- This occurs when organic matter, such as plants and animals, dies and is buried under layers of sediment.
- Over time, heat and pressure from the Earth transform this organic matter into fossil fuels.
Types of Fossil Fuels
- There are three main types of fossil fuels:
- Coal: Formed primarily from ancient plants in swampy areas.
- Oil (Petroleum): Derived from marine organisms, such as tiny sea creatures, that sank to the ocean floor.
- Natural Gas: Often found alongside oil, it is also formed from the remains of marine organisms.
Importance of Fossil Fuels
- Fossil fuels are crucial for modern energy needs, providing power for electricity, heating, and transportation.
- They are a significant source of energy worldwide, making up a large percentage of global energy consumption.
Environmental Impact
- While fossil fuels are vital for energy, their use contributes to environmental issues such as air pollution and climate change.
- This has led to increased interest in renewable energy sources, which are more sustainable.
In summary, fossil fuels are primarily made from the remains of ancient plants and animals, transformed over millions of years into valuable energy resources. Understanding their origin and impact is essential for our future energy choices.

Renewable resources like air, water, and sunlight are naturally replenished, whereas fossil fuels and minerals are non-renewable.

Nitrogen, making up 78% of the atmosphere, is relatively inert and does not support combustion or respiration directly.

Oxygen is vital for respiration, allowing living organisms to produce energy from food.

Burning fossil fuels releases smoke and carbon dioxide, contributing to air pollution and climate change.

Water is used for drinking, cooking, cleaning, and agriculture; it does not generate sunlight.

Freshwater is essential for human consumption, agriculture, and various industries, unlike saltwater, which is not suitable for these purposes.

Nitrogen makes up about 78% of the atmosphere, making it the most abundant gas.

Natural resources such as air, water, soil, and sunlight are fundamental for life as they support our energy needs, food production, and overall well-being.

Renewable resources, such as air and water, can be replenished naturally, while non-renewable resources like fossil fuels and minerals are finite.

The Sun’s energy can be directly used for heating water in solar water heaters and cooking in solar cookers.

Holding our breath too long prevents sufficient oxygen from reaching our body, which can affect our ability to function properly.

Rainwater harvesting involves collecting and storing rainwater so that it can be used later, helping to conserve water.

Natural treasures are the resources provided by nature, such as air, water, and soil, which are vital for the survival of all living beings.

Forests produce oxygen through photosynthesis and absorb carbon dioxide, thereby playing a vital role in maintaining the Earth’s air quality.