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	A bustling city faces challenges with its growing wastewater volume and outdated treatment facilities. This untreated wastewater is discharged into a nearby river, leading to algal blooms, low oxygen levels, and fish die-offs. Complete the flowchart by accurately identifying the specific methods and techniques A, B and C utilised in primary, secondary, and tertiary wastewater treatment aimed at enhancing the quality of discharged water.
	a) A: Screening → Grit removal → Sedimentation B: Filtration → Disinfection C: Biological treatment → Clarification		b) A: Biological treatment → Clarification B: Screening → Grit removal → Sedimentation C: Filtration → Disinfection
	c) A: Biological treatment → Clarification B: Filtration → Disinfection C: Screening → Grit removal → Sedimentation		d) A: Screening → Grit removal → Sedimentation B: Biological treatment → Clarification C: Filtration → Disinfection

Q.2	Considering the impact of climate change, which region might experience a significant rise in the frequency of extreme weather events such as heatwaves and the formation of heat domes?
	a) Polar regions		b) Coastal regions with strong sea breezes
	c) Mid-latitude regions		d) Mountainous regions

Q.3	A community relies on a rainwater harvesting system for its water supply. The system collects rainwater from rooftops and stores it in large underground tanks. After a heavy rainfall, the residents notice that the stored water has a brownish colour and an unpleasant odour. What could be the most likely cause of this contamination? 1. Insufficient filtration and disinfection of the rainwater 2. Accumulation of organic debris in the storage tanks 3. Leaching of pollutants from roofing materials
	a) Only 1		b) Only 1 and 2
	c) Only 2 and 3		d) 1, 2 and 3

Q.4	In a discussion regarding the significance of tropical rainforests in global climate regulation, a group of environmental researchers is examining the mechanisms by which these forests contribute to this role. Which mechanism or mechanisms among the following options significantly contribute to the crucial role of tropical rainforests in regulating the global climate? 1. Carbon sequestration through photosynthesis 2. Release of moisture into the atmosphere 3. Absorption of solar radiation
	a) Only 1		b) Only 1 and 2
	c) Only 2 and 3		d) 1, 2 and 3

Q.5	A local river, which serves as a crucial water source for the community, has been experiencing deteriorating water quality. Which parameter is primarily used to indicate organic pollution in freshwater systems?
	a) Dissolved oxygen		b) pH
	c) Total Dissolved Solids (TDS)		d) Turbidity

Q.6	A small community in a rural area relies on a well for its drinking water. However, recent tests have shown that the well water is contaminated with bacteria. The community is concerned about the health risks posed by the contaminated water and is considering various options for addressing the problem. Which of the following options would be the most effective, sustainable and long-term solution for the community to protect its drinking water source? 1. Install a water filtration system at the well. 2. Educate the community about the importance of proper sanitation practices. 3. Find a new source of drinking water, such as a bottled water supplier.
	a) Only 1		b) Only 1 and 2
	c) Only 2 and 3		d) 1, 2 and 3

Q.7	You're passionate about reducing your environmental footprint, particularly concerning packaging materials. You've come across a study that highlights the significance of recycling and reuse in lessening the environmental impact of packaging. Which of the following statements accurately reflects the environmental impact of recycling and reuse in relation to packaging materials?
	a) Recycling is always the most environmentally friendly option, regardless of the material.		b) Recycling and reuse are equally effective in reducing the environmental impact of packaging.
	c) Recycling and reuse are not effective strategies for reducing the environmental impact of packaging.		d) Reuse is generally more environmentally friendly than recycling, especially for non-recyclable materials.

Q.8	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.9	Researchers conducted an experiment to assess the effectiveness of green roofs in reducing indoor temperatures. They compared the energy consumption of buildings with and without green roofs during summer months. The results showed a noticeable decrease in energy usage in buildings with green roofs. What does this experiment suggest about the role of green roofs in climate change mitigation?
	a) Green roofs increase energy consumption, contributing to climate change.		b) Green roofs have no impact on indoor temperatures or energy usage.
	c) Green roofs decrease energy consumption, mitigating the urban heat island effect.		d) Green roofs release greenhouse gases, exacerbating global warming.

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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