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	Among the options provided, which statement most accurately describes the primary impact of deforestation on biodiversity in the tropical rainforest?
	a) The reduced availability of tree cover in the rainforest primarily benefits species' adaptability.		b) Deforestation has no significant influence on species populations or vulnerability to extinction.
	c) Removal of trees disrupts habitats, resulting in decreased species populations and increased extinction risks.		d) Extensive deforestation mainly leads to an increased number of habitats for various species.

Q.2	A company is developing a new product line that includes a range of household cleaning products. The company is committed to using sustainable ingredients and packaging. Which of the following options would be the most environmentally friendly?
	a) Using plant-based ingredients and recycled packaging		b) Using natural ingredients and biodegradable packaging
	c) Using synthetic ingredients and reusable packaging		d) Using recycled ingredients and single-use packaging

Q.3	A group of scientists is studying the effects of climate change on a mountain grassland ecosystem. They observe that the average temperature in the region has increased over the past few decades, and that the timing of plant flowering has shifted earlier in the spring. How might these changes impact the interactions between plants and pollinators in this ecosystem?
	a) Pollinators may have difficulty finding food sources due to the mismatch between their life cycle and the timing of plant flowering, also resulting in reduced pollination success.		b) Pollinators may benefit from the increased temperature, as it could lead to an increase in plant growth and nectar production.
	c) Earlier plant flowering may have no significant impact on pollinators as they can adapt their behaviour and life cycles accordingly.		d) The rise in temperature could decrease the number of plant species, thereby reducing the variety of resources available for pollinators, causing a decline in their populations.

Q.4	A conservationist is concerned about the declining population of a particular endangered species in a forest reserve. What would be the most appropriate action to conserve this species?
	a) Introducing a different species to the reserve to enhance biodiversity.		b) Removing some competing species to give the endangered species more resources.
	c) Conducting habitat restoration and protection efforts specific to the species' needs.		d) Keeping the endangered species safe in captivity.

Q.5	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.6	Sarah is a teacher at an elementary school. She collects scrap paper from her students and uses the blank sides for drawing, thereby extending the life of the paper before recycling it. What is Sarah doing in this scenario to contribute to waste reduction and sustainability?
	a) Throwing scrap paper away		b) Promoting the use of new paper
	c) Reusing paper before recycling it		d) Increasing paper waste

Q.7	In a local community initiative, Sarah's school decided to promote recycling. They collected plastic bottles, newspapers, and aluminium cans. What's the primary advantage of recycling these materials?
	a) Reducing landfill space and environmental pollution.		b) Increasing the cost of production for new materials.
	c) Promoting the use of non-renewable resources.		d) Decreasing the need for waste segregation.

Q.8	In the following question, you will find an assertion and a reason. Select the appropriate option that applies. Assertion: While deserts like the Sahara are notoriously arid, some coastal regions also experience water scarcity. Reason: Rising sea levels due to climate change can contaminate freshwater sources with saltwater intrusion.
	a) Both assertion and reason are true, and the reason is the correct explanation of the assertion.		b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
	c) The assertion is true, but the reason is false.		d) The assertion is false, but the reason is true.

Q.9	A study in a river basin area shown in the picture reveals that the concentration of heavy metals in the water significantly exceeds permissible limits downstream of an industrial area. What can be inferred from this data?
	a) Heavy metals have no impact on water quality		b) The river basin acts as a natural filter, reducing pollution
	c) Industrial activities are likely the source of heavy metal pollution		d) The upstream area is more polluted due to urban development

Q.10	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

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