International Green Warrior Olympiad Class 10 Previous Year Paper

The International Green Warrior Olympiad for Class 10 is designed to challenge students with thought-provoking questions on global environmental issues. It's the perfect platform to connect classroom learning with real-world sustainability challenges-and previous year papers are the key to smart preparation!

Why Practise with Previous Year Papers?

• Explores advanced topics like Clean Water and Sanitation, Affordable and Clean Energy & Sustainable Cities and Communities etc.
• Enhances critical thinking and decision-making skills related to environmental impact.
• Improves accuracy and speed by getting familiar with the question formats and exam style.

Download the Class 10 International Green Warrior Olympiad Previous Year Paper PDF and help your child take a confident step towards becoming a future-ready environmental leader!

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Syllabus:

Clean Water and Sanitation

• Water sources and quality: Sources of clean water (e.g., rivers, lakes, groundwater), water quality testing and monitoring, role of water treatment plants in ensuring safe drinking water
• Sanitation and hygiene: Importance of proper sanitation and hygiene practices, safe disposal of waste and human excreta, role of handwashing in disease prevention
• Waterborne diseases: Common waterborne diseases (e.g., cholera, diarrhoea), how waterborne diseases spread and impact public health, prevention through clean water and sanitation practices
• Water conservation and efficiency: The water cycle and its importance, strategies for water conservation at home and in communities, technologies for efficient water use (e.g., low-flow fixtures)
• Emerging technologies for clean water: Introduction to innovative water purification technologies, solar water purifiers, filtration systems, and water-purifying plants
• Water and the environment: Impact of water pollution on ecosystems and biodiversity, case studies on polluted rivers and oceans, the role of communities in protecting water sources
• Water pollution and treatment: Sources and types of water pollution (e.g., industrial, agricultural), effects of pollution on aquatic ecosystems and human health, wastewater treatment processes and their importance

Affordable and Clean Energy

• Affordable and clean energy: Differentiating between clean and fossil fuel-based energy sources
• Fossil fuels and their consequences: Understanding the environmental impact of fossil fuel use (coal, oil, natural gas), air and water pollution caused by fossil fuels, the role of carbon emissions in climate change
• Alternative energy sources: Solar, wind, hydropower, geothermal, hydro, tidal, wave, biofuel etc., sources of low-carbon energy, advantages of using renewable energy in a domestic setting (solar power, geothermal heat pumps, small wind systems)
• Energy conservation and efficiency: Ways to conserve energy in daily life, benefits of conservation of energy. improving energy efficiency in homes, buildings, and industries can significantly reduce energy consumption. energy-efficient appliances, led lighting, and well-insulated buildings are examples of ways to achieve this.

Sustainable Cities and Communities

• Sustainable water management: Introduction to sustainable water management, rainwater harvesting and greywater recycling, water reuse and recycling practices
• Sustainable waste management: Encourage waste reduction, reuse of materials, and recycling to minimize waste generation
• Environmental sustainability: Preserve green spaces, parks, and natural habitats to support biodiversity
• Effects of urbanisation and sustainable urbanisation

Responsible Consumption and Production

• Responsible technology consumption: The environmental and social consequences of electronics consumption, e-waste management and responsible disposal, strategies for extending the lifespan of electronic devices
• The 5 r's: Reduce, reuse, recycle, repurpose, and refuse
• Reducing energy consumption in daily life, The role of energy-efficient appliances
• Making sustainable purchasing decisions

Climate Action

• Introduction to climate change: Definition of climate change and global warming, evidence of climate change (e.g., temperature records, ice melt, sea-level rise)
• Greenhouse effect and global warming: Understanding the greenhouse effect, role of greenhouse gases (e.g., carbon dioxide, methane), link between human activities and increased greenhouse gas concentrations
• Impacts of climate change: Effects on weather patterns and extreme events, economic and social consequences of climate change, examples of climate change impacts
• Mitigation and adaptation strategies: Reducing greenhouse gas emissions (mitigation), strategies for energy efficiency and renewable energy, climate adaptation measures and resilience building
• Climate change solutions at the individual level: Sustainable lifestyle choices, reducing carbon footprint in daily life

Life Below Water

• Preserving life below water: Reduce marine pollution, protect and restore ecosystems, reduce ocean acidification, practice sustainable fishing, conserve coastal and marine areas etc.
• Sustainable fisheries and aquaculture: Sustainable fishing practices, responsible aquaculture and fish farming, overfishing and bycatch
• Threats to life underwater: Addressing threats like climate change, debris, dead zones, toxic spills, overfishing, shoreline development, coastal erosion, ocean acidification

Life On Land

• Protect, restore, and promote the sustainable use of terrestrial ecosystems: Managing forests sustainably, combating desertification, restoring degraded land and soil, halting biodiversity loss, protecting threatened species
• Forest ecosystems and their importance: Introduction to forest ecosystems (temperate, tropical, boreal), role of forests in carbon storage and climate regulation, deforestation and its impacts

Food Security and Agriculture

• Food choices and sustainable eating: The environmental impact of food choices, sustainable diets and the benefits of local, seasonal foods, reducing food waste and practicing mindful eating
• Food waste reduction: The global problem of food waste, strategies for reducing food waste
• Sustainable agriculture and land use: Sustainable farming practices (e.g., organic, agroecology), role of regenerative agriculture in soil health, urban agriculture and community gardens
• Promoting farming systems that use climate-smart techniques and produce a diverse mix of foods
• Improving supply chains to reduce post-harvest food losses
• Implementing resilient agricultural practices that increase productivity and production

Sample Paper Marking Scheme Free Study Material

Previous Year Questions

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Q.10

Q.1	Over-extraction of groundwater can lead to various negative consequences. Which of the following is NOT a potential consequence of excessive groundwater extraction?
	a) Increased soil fertility		b) Land subsidence
	c) Saltwater Intrusion		d) Decreased baseflows in rivers

Q.2	A scientist is studying the effects of climate change on a tropical rainforest. She measures the amount of water vapour in the atmosphere and finds that it has increased by 10% over the past decade. What does this suggest?
	a) The rainforest is becoming drier.		b) The rainforest is becoming wetter.
	c) The rainforest is becoming warmer.		d) The rainforest is becoming colder.

Q.3	You are watching a wildlife documentary where a pod of migrating humpback whales suddenly changed their course, avoiding a polluted area in the river. It was later shown that the scientists discovered high levels of mercury in the water. How could this pollution potentially threaten the whales? 1. Weaken their immune system 2. Damage their nervous system, impacting movement 3. Blur their vision, hindering navigation and hunting
	a) Only 1		b) Only 1 and 2
	c) Only 2 and 3		d) 1, 2 and 3

Q.4	In a city, a significant portion of food from households and restaurants is discarded. Which factor explains the direct link between food waste and its contribution to greenhouse gas emissions and climate change?
	a) Food waste releases toxic chemicals that deplete the ozone layer.		b) Decomposing food waste in landfills produces methane, a potent greenhouse gas.
	c) Food waste leads to deforestation, increasing carbon emissions.		d) Food waste increases the energy consumption of waste disposal facilities.

Q.5	The government of a country is planning to build a new nuclear power plant to meet increasing energy demands. The scientists and engineers involved are discussing the choice of uranium isotopes for fuel. During the discussion, they are considering various factors for the most suitable isotope. Considering the discussion among the scientists and engineers, why is uranium-235 (U-235) preferred for nuclear fission in power plants?
	a) It is more abundant in nature compared to other isotopes.		b) It releases less heat compared to other isotopes.
	c) Its atoms are easily split apart, releasing energy.		d) It requires minimal processing before use as a fuel.

Q.6	Consider the case study given below and answer the following question: Case study: Combatting Global Food Waste In a study conducted by the World Resources Institute, it was estimated that one-third of all food produced globally is wasted. This staggering amount represents a significant loss of resources, including water, land, and energy, and contributes to greenhouse gas emissions. To address this pressing issue, researchers have developed various strategies to reduce food waste, each tailored to specific stages of the food supply chain. At the household level, meal planning and proper storage practices can significantly reduce food waste. Planning meals ahead of time helps individuals avoid impulse purchases and ensures that ingredients are used before they spoil. Proper storage, such as keeping fruits and vegetables in the refrigerator and storing pantry items in airtight containers, extends the shelf life of food. In the retail sector, implementing innovative technologies like dynamic pricing and smart packaging can help reduce food waste. Dynamic pricing adjusts the price of perishable items based on their freshness, encouraging consumers to purchase items before they spoil. Smart packaging incorporates sensors that monitor the freshness of food, alerting retailers when items are nearing their expiration dates. Food waste reduction strategies also extend to the production and processing stages of the food supply chain. Improved harvesting techniques and post-harvest handling practices can minimise damage to crops and reduce food losses. Additionally, diverting inedible food scraps from landfills to composting facilities can convert waste into valuable nutrient-rich soil amendments. By implementing these strategies at various stages of the food supply chain, we can collectively reduce food waste, conserve resources, and minimise our environmental impact. Based on the scenario provided, which statement best summarises the overall impact of the food waste reduction initiative? 1. Food waste reduction conserves resources and minimises environmental impact. 2. Food waste reduction improves food security and reduces hunger. 3. Food waste reduction promotes sustainable agriculture and economic growth.
	a) Only 1		b) Only 1 and 2
	c) Only 2 and 3		d) 1, 2 and 3

Q.7	Rohan is a fitness enthusiast and prioritises protein intake. He usually opts for whey protein powder derived from dairy after workouts. His friend Raj suggests trying plant-based alternatives like pea protein or soy protein for environmental reasons. Rohan is sceptical about their effectiveness. What is the most accurate and helpful information Rohan can share with Raj to consider?
	a) While some plant-based proteins may be slightly less effective, they offer environmental benefits and can still support fitness goals.		b) Plant-based proteins are inferior to whey proteins in terms of muscle building and recovery.
	c) The environmental impact of protein powder is minimal compared to other food choices, so switching is unnecessary.		d) The protein source doesn't matter as long as the total protein intake is sufficient.

Q.8	You typically wash a full load of laundry with hot water (40°C). Based on the provided information, which of the following options would have the potential to reduce your total laundry energy consumption? A. Washing smaller loads more frequently instead of a full load once a week. B. Switching to warm water (30°C) for most washes. C. Air-drying your clothes instead of using the dryer entirely. D. Cleaning the lint screen in your dryer after every load to improve airflow.
	a) A only		b) A and B only
	c) B, C and D only		d) A, B, C and D

Q.9	A coastal area witnesses a significant decrease in the population of shellfish due to water contamination. Analysis reveals the presence of persistent organic pollutants (POPs). POPs are resistant to environmental degradation through chemical, biological, and photolytic processes. For this reason, they persist in the environment for a long time. Which method is most effective in reducing POPs in aquatic environments?
	a) Bioremediation with specialised bacteria		b) Bioaccumulation
	c) Sedimentation		d) Aeration and dilution

Q.10	The following table shows the average temperature and precipitation for three different biomes. Based on your understanding, answer the following questions. A. Which biome is expected to experience the most severe drought stress due to reduced rainfall? B. Which biome is expected to experience the most significant changes in soil drainage and nutrient availability due to melting permafrost? C. Which biome is expected to experience the changes in the distribution of oak species due to rising temperatures? Biome Average Temperature (oC) Average Precipitation (mm) Temperature forest 10 800 Tropical rainforest 25 2,500 Boreal forest -5 500
	a) A: Boreal forest B: Temperate forest C: Tropical rainforest		b) A: Tropical rainforest B: Boreal forest C: Temperate forest
	c) A: Temperate forest B: Tropical rainforest C: Boreal forest		d) A: Tropical rainforest B: Temperate forest C: Boreal forest

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