International Green Warrior Olympiad Class 8 Previous Year Papers

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Syllabus:

Clean Water and Sanitation

1. Introduction to clean water: Understanding the importance of clean water and proper sanitation, various sources of clean water, methods to purify water, water treatment plans, methods to filtre water
2. Proper sanitation and personal hygiene: Sanitation and personal hygiene practices and their impact on health, access to clean toilets and sanitation facilities
3. Waterborne diseases: Common waterborne diseases (e.g., cholera, dysentery), how waterborne diseases spread, prevention through clean water and sanitation
4. Water scarcity and global water issues: Exploring water scarcity in different regions, the role of climate change in water scarcity
5. Water pollution and treatment: Sources and types of water pollution, consequences of water pollution, wastewater treatment processes
6. Water conservation: The water cycle and its importance, strategies for water conservation, technologies for efficient water use

Affordable and Clean Energy

1. Sources of energy: Exploration of various energy sources (e.g., fossil fuels, renewable energy, nuclear), how energy is generated from different sources, environmental impacts of different energy sources
2. Renewable energy sources: Introduction to renewable energy sources (e.g., solar, wind, hydro, geothermal), how renewable energy systems work, advantages and challenges of renewable energy
3. Energy conservation and efficiency: Understanding the importance of energy conservation, practical tips for saving energy at home and school, energy-efficient technologies and practices
4. Introduction to clean energy: Understanding the concept of clean energy, differentiating clean energy from fossil fuels
5. Clean energy innovations: Innovations in clean energy technology, solar roadways and smart grids
6. Environmental impact of fossil fuels: Understanding the environmental impact of fossil fuel use, air and water pollution caused by fossil fuels

Sustainable Cities and Communities

1. Sustainable transportation and green infrastructure: Introduction to sustainable transportation, the role of electric and hybrid vehicles, bicycles as a sustainable mode of transportation, sustainable urban planning and green infrastructure
2. Characteristics of sustainable cities: Green infrastructure, urban farming, efficient public transportation, operations on renewable energy sources, waste management
3. Universal access to safe, inclusive, and accessible green and public spaces

Responsible Consumption and Production

1. The three r's: reduce, reuse, recycle: Importance of three r's of responsible consumption, strategies to reduce waste and consumption, creative ways to reuse items, introduction to recycling and waste separation
2. Responsible consumption of water and energy: Importance of conserving water and energy, practical tips for saving water and electricity, energy-efficient appliances and lighting
3. Responsible consumption of water and energy: Importance of conserving water and energy, practical tips for saving water and electricity, energy-efficient appliances and lighting

Climate Action

1. Introduction to climate change: Understanding the concept of climate change, differentiating between climate and weather, causes and effects of climate change
2. The carbon cycle: Understanding the carbon cycle, how humans disrupt the carbon cycle
3. Earth's climate systems: Introduction to earth's climate systems, the role of the atmosphere and oceans in climate regulation
4. The greenhouse effect: Explaining the greenhouse effect, how it affects the earth's temperature

Life Below Water

1. Conservation of marine life: Exploring marine protected areas and marine sanctuaries, importance of marine conservation for biodiversity
2. Threats to marine ecosystems: Identifying human activities that harm marine ecosystems (e.g., overfishing, pollution, habitat destruction), discussing the impact of climate change on oceans
3. Marine pollution and plastic waste: Sources and types of marine pollution (e.g., plastic waste, oil spills), impact of pollution on marine life and ecosystems, solutions and cleanup efforts

Life On Land

1. Introduction to terrestrial ecosystems: Understanding terrestrial ecosystems (e.g., forests, grasslands, deserts), importance of land-based environments
2. Endangered species and conservation: Introduction to endangered species, conservation efforts to protect endangered species
3. Major threats to terrestrial ecosystems: Habitat destruction and fragmentation, deforestation, overexploitation, pollution, agriculture practices, etc.

Food Security and Agriculture

1. Food choices and sustainability: The impact of food choices on the environment, reducing food waste at home and school, sustainable farming practices (e.g., organic, local), composting and its benefits
2. Climate change and food security: How climate change affects food production and agriculture, strategies for adapting to changing climates in agriculture

Sample Paper Marking Scheme Free Study Material

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Q.1	A group of researchers is discussing the causes and effects of climate change during a conference. They aim to pinpoint the accurate relationship between a specific human activity and its consequent impact on the environment. Which scenario correctly identifies a human activity and its corresponding impact on the environment?
	a) Increased usage of solar energy leading to ozone layer depletion.		b) Deforestation resulting in the loss of biodiversity and disruption of ecosystems.
	c) Reduced use of fossil fuels causing an increase in air pollution and smog formation.		d) Expansion of agricultural practices leading to a rise in sea levels and coastal erosion.

Q.2	Daniel's school initiated a project to implement bioenergy sources to reduce its carbon footprint. As part of their research, they explored various options for renewable bioenergy. They considered using different materials such as agricultural waste, wood chips, and animal manure. Which of the following materials can be considered a renewable source of bioenergy?
	a) Coal briquettes		b) Plastic waste from the school cafeteria
	c) Wood chips from sustainably managed forests		d) Food waste from the school cafeteria burned in an incinerator

Q.3	In a study comparing two diverse regions, a Coastal City and a Desert Region, several factors influencing annual rainfall were analysed and recorded in the table below. Based on this information, which of the following statements is most accurate?
	a) The coastal city experiences high evaporation rates due to its proximity to the ocean, leading to increased rainfall.		b) The desert region receives less rainfall because the water cycle doesn't operate there.
	c) The coastal city receives more rainfall because it has more vegetation to trap moisture.		d) The desert region gets less rainfall because the water cycle is more active over the ocean.

Q.4	In a disaster-stricken area where access to clean water is limited, a relief organisation assists a local community facing water contamination. The primary water source, a nearby river, has been contaminated by industrial waste, rendering it unsafe for consumption. Boiling water is one known method for purifying it, but the situation requires alternative solutions due to the sheer volume of contaminated water. What additional effective method can be utilised on a larger scale to purify the contaminated water, making it suitable for drinking purposes in such an emergency?
	a) Adding calcium tablets		b) Activated carbon filtration
	c) Pouring it through a coffee filter		d) Employing a reverse osmosis filtration system

Q.5	In your research on marine ecosystems, you've found evidence suggesting shifts in the distribution of certain fish species. Fish that were once abundant in cooler waters are now migrating to different regions. What is the primary factor influencing this phenomenon?
	a) Changes in ocean salinity		b) Reduced predation in the new habitats
	c) Increasing acidity in the oceans		d) Rising ocean temperatures

Q.6	In a remote village, access to electricity is limited. The government aims to introduce affordable and clean energy sources to improve living conditions. Considering the village's geographical isolation, unreliable grid connections, and the need for sustainable solutions, which approach would be the most effective and practical for providing immediate access to clean energy?
	a) Establishing a small-scale wind turbine farm to harness local wind resources.		b) Implementing solar microgrids tailored to the village's energy needs.
	c) Introducing biogas digesters to convert organic waste into usable energy.		d) Installing small-scale hydroelectric systems using nearby streams or rivers.

Q.7	A family decides to install solar panels on their roof to generate electricity. How does this contribute to responsible energy consumption?
	a) Increases carbon emissions and environmental impact		b) Reduces reliance on non-renewable energy sources such as fossil fuels
	c) Promotes excessive energy consumption and wastage		d) Encourages dependence on unsustainable energy practices

Q.8	A farmer observed that the soil in his fields was becoming increasingly dry, even after heavy rainfall. The farmer suspected that the dry soil was due to increased runoff, preventing water from infiltrating the ground. Which of the following practices could help the farmer improve soil moisture? A. Tilling the soil to increase its water-holding capacity B. Planting cover crops to protect the soil from erosion C. Creating channels and other structures to slow down runoff
	a) A only		b) A and B only
	c) B and C only		d) A, B and C

Q.9	In a study assessing greenhouse gas emissions in the food production sector, researchers analysed various contributing factors. Which factor most likely contributes most significantly to greenhouse gas emissions?
	a) Land clearing for agricultural purposes		b) Fertiliser use
	c) Livestock production		d) Irrigation practices

Q.10	In an area facing increased soil erosion due to extreme weather events linked to climate change, farmers seek strategies to protect soil health. What practice aligns best with sustainable soil management in such conditions?
	a) Clearing land for larger-scale monoculture to simplify farming practices.		b) Implementing agroforestry systems to prevent soil erosion and maintain fertility.
	c) Relinquishing organic matter addition to soil for fear of further erosion.		d) Applying chemical pesticides extensively to eradicate soil-dwelling pests.

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