International Green Warrior Olympiad Class 10 Previous Year Papers

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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

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Q.1	In a workshop discussing electronic waste reduction, participants explore devices that are more susceptible to shorter lifespans because of rapid advancements in technology and frequent model upgrades. Which of the following devices is MOST prone to shorter lifespans due to these factors?
	a) Smartphones and laptops		b) Refrigerators and kitchen appliances
	c) Washing machines and dryers		d) Microwave ovens and coffee makers

Q.2	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.3	You're the sustainability coordinator for your school, tasked with analysing and improving waste management practices. To assess current methods, you gather information on various practices used by students and staff. Analyse each scenario and identify the most appropriate 5R category it falls into: Reduce, Reuse, Recycle, Repurpose, or Refuse. Scenario 1: The school cafeteria replaces single-use plastic water bottles with reusable water bottles for students to bring from home. Scenario 2: The school declines any subscription to promotional materials. Scenario 3: The school installs motion sensor lights in hallways and classrooms to minimise unnecessary energy usage. Scenario 4: The art department uses leftover fabric scraps from previous projects to create new artwork and decorations. Scenario 5: The school has separate bins for paper, cardboard, and plastic bottles.
	a) Scenario 1: Reuse Scenario 2: Refuse Scenario 3: Reduce Scenario 4: Repurpose Scenario 5: Recycle		b) Scenario 1: Repurpose Scenario 2: Refuse Scenario 3: Recycle Scenario 4: Reuse Scenario 5: Reduce
	c) Scenario 1: Repurpose Scenario 2: Recycle Scenario 3: Reduce Scenario 4: Reuse Scenario 5: Refuse		d) Scenario 1: Reduce Scenario 2: Repurpose Scenario 3: Reuse Scenario 4: Refuse Scenario 5: Recycle

Q.4	A rural village has limited access to electricity, relying primarily on kerosene lamps for lighting. Kerosene use has been linked to respiratory problems and indoor air pollution. The village council is considering ways to improve access to clean and reliable electricity. Which of the following would be the most effective long-term solution to address both health concerns and energy needs?
	a) Distributing more kerosene lamps with improved ventilation.		b) Providing solar-powered lighting systems to each household.
	c) Encouraging households to use candles instead of kerosene lamps.		d) Constructing additional diesel-powered generators for increased electricity.

Q.5	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.6	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.7	A small town located in a desert region is experiencing frequent power outages due to an ageing grid infrastructure. The town council is considering investing in renewable energy to improve energy security and reduce reliance on the grid. The system needs to be reliable, cost-effective, and able to meet the community's energy needs throughout the year. Which combination of renewable energy sources would be the most appropriate for this project?
	a) Geothermal energy and tidal energy		b) Solar power and wind power
	c) Biomass energy and hydro energy		d) Solar power and hydro energy

Q.8	Consider the following statements and choose the correct option: Statement 1: Climate change impacts are predictable, and their effects remain constant across different regions and communities. Statement 2: Climate change mitigation involves adapting to its effects rather than reducing greenhouse gas emissions.
	a) Statement 1 is correct but statement 2 is incorrect.		b) Statement 1 is incorrect but statement 2 is correct.
	c) Both the statements are correct.		d) Both the statements are incorrect.

Q.9	Geneva is an aquatic biologist working for a local environmental agency. She is studying the impact of excess nutrients and increasing atmospheric CO2 on the health of a nearby bay. She is concerned that the combined effects of these factors could be harming marine life and disrupting the ecosystem. She has developed a flow chart representing the relationships between various elements. Based on your understanding of aquatic ecosystems, identify A, B, C, D, and E.
	a) A: Eutrophication B: Climate change C: Decreased pH D: Warming E: Acidification		b) A: Decline in biodiversity B: Climate change C: Decreased pH D: Dead zones E: Coral bleaching
	c) A: Biomagnification B: Increase in greenhouse gases C: Increased pH D: Warming E: Acidification		d) A: Dead zones B: Global warming C: Acidification D: Decreased 02 E: Increased Ph

Q.10	You're a municipal waste manager responsible for handling electronic waste (e-waste) in your city. During a routine inspection of the e-waste disposal facility, you notice a significant amount of discarded electronic devices, including computers, monitors, and smartphones. Concerned about potential health hazards, you decide to educate the public about the risks associated with improper disposal of these devices. Which of the following group of heavy metals is commonly found in electronics and can pose serious health risks if not properly disposed of?
	a) Aluminium and zinc		b) Iron and magnesium
	c) Lead and mercury		d) Copper and zinc

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