International Green Warrior Olympiad Class 12 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

Q.1

Q.2

Q.3

Q.4

Q.5

Q.6

Q.7

Q.8

Q.9

Q.10

Q.1	While shopping, Maya sees a new "biodegradable" label on plastic water bottles. Curious, she wonders how accurate this claim is. What should Maya be cautious about regarding the "biodegradable" label on these plastic water bottles? 1. Even if biodegradable, these bottles might not decompose quickly in home compost bins. 2. Biodegradable plastics could harm the environment in different ways if not disposed of properly. 3. This label doesn't necessarily mean the bottles are made from recycled materials.
	a) Only 1		b) Only 1 and 2
	c) Only 2 and 3		d) 1, 2 and 3

Q.2	Sophie and her marine biology class were on a research vessel exploring marine life near the coast. Suddenly, they noticed a distressed pod of dolphins swimming amidst an oil slick that stretched for miles. Investigating further, they realised it was the result of a tanker accident, causing severe repercussions for the marine environment. Sophie and her classmates witnessed an oil spill from a tanker that affected the surrounding ocean. How does this type of marine pollution primarily impact marine ecosystems?
	a) It increases oxygen levels in the water, benefiting fish and other aquatic organisms.		b) It leads to increased biodiversity as some species adapt to the oil-rich environment.
	c) It accelerates coral reef growth due to the nutrients present in the oil.		d) It disrupts the food chain by poisoning primary producers like algae and plankton.

Q.3	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.4	A group of farmers is considering using a new type of pesticide to control pests in their crops. What are some potential risks associated with the use of this pesticide? 1. The pesticide may harm beneficial insects that help pollinate crops 2. The pesticide may contaminate water sources, harming aquatic life 3. The pesticide may become resistant to pests over time, requiring higher doses
	a) Only 1		b) Only 1 and 2
	c) Only 2 and 3		d) 1, 2 and 3

Q.5	Match the following types of marine pollution with their potential impact on marine life. Types of Marine Pollution: 1. Plastic debris and microplastics 2. Chemical pollutants from industrial waste 3. Noise pollution from ships and sonar activities 4. Oil spills and their residues Potential Impact on Marine Life: A. Ingestion by marine animals leading to digestive issues B. Disruption of communication and navigation in marine species C. Bioaccumulation in marine food chains D. Harmful effects on fish gills and feathers of seabirds
	a) 1 - A, 2 - C, 3 - B, 4 - D		b) 1 - D, 2 - A, 3 - C, 4 - B
	c) 1 - B, 2 - A, 3 - D, 4 - C		d) 1 - C, 2 - B, 3 - A, 4 - D

Q.6	A city council aims to encourage composting among residents to reduce waste and promote sustainability. They plan to educate citizens about the benefits of composting. What key points would be most effective in promoting composting practices in the community?
	a) Highlighting the reduction of methane emissions from landfills and the enrichment of soil with compost.		b) Focusing on the convenience of disposing of organic waste without considering environmental benefits.
	c) Emphasising the increased waste collection costs associated with organic waste disposal.		d) Promoting composting only as a means of reducing waste without discussing its environmental advantages.

Q.7	Imagine two forests: a vast boreal coniferous forest in Siberia and a temperate deciduous forest in New England. Both forests experience seasonal changes in temperature and precipitation. However, the boreal forest stores significantly more carbon. What could be the primary reason for this difference?
	a) The slower decomposition rate in colder boreal regions allows for longer carbon storage.		b) The dense evergreen needles of boreal trees provide a larger surface area for carbon capture.
	c) The diverse understory vegetation in temperate forests competes with trees for available carbon.		d) The frequent wildfires in boreal regions release stored carbon back into the atmosphere.

Q.8	An environmental study conducted in a coastal region highlighted the excessive use of fishing gear resulting in the capture of unintended marine species, including endangered turtles and dolphins. What is the primary impact of this indiscriminate fishing practice?
	a) Maintenance of balanced marine ecosystems due to increased species diversity.		b) Reduction in bycatch due to the efficiency of modern fishing gear.
	c) Threatening biodiversity and endangering non-targeted species.		d) Preservation of endangered species populations.

Q.9	You're going on a camping trip with your friends, but the nearby stream isn't exactly crystal clear. You're unsure about the type of filter that you should carry with you, so you consider the potential contaminants and location of the stream: Sediment: The stream is a bit muddy after recent rains. Bacteria: You're worried about potential pathogens like E. coli from upstream wildlife. Location: The stream is in a very remote location away from industry or farms. Which filter would be the best choice for your situation, considering the purification efficiency of each?
	a)		b)
	c)		d)

Q.10	Match the sustainable food choices and practices with their potential environmental benefits. Choices: 1. Choosing locally grown vegetables and fruits over imported options. 2. Packing reusable dishes and utensils instead of disposable ones. 3. Opting for plant-based meals over meat-based ones for some dinners. 4. Composting leftover food scraps and fruit peels instead of throwing them away. 5. Bringing your own water bottles and avoiding single-use plastic for beverage packaging. Benefits: A. Reducing greenhouse gas emissions and air pollution. B. Conserving soil health and minimising water usage. C. Minimising landfill waste and promoting decomposition. D. Supporting local farmers and reducing transportation emissions. E. Lowering water wastage and preventing plastic pollution.
	a) 1-A, 2-C, 3-B, 4-E, 5-D		b) 1-B, 2-D, 3-E, 4-A, 5-C
	c) 1-D, 2-C, 3-A, 4-B, 5-E		d) 1-E, 2-A, 3-B, 4-C, 5-D

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