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	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.2	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.3	Carbon emissions from anthropogenic sources contribute to the greenhouse effect, trapping heat in the Earth's atmosphere. Which of the following best describes the mechanism by which carbon dioxide (CO2) traps heat?
	a) Refraction of sunlight		b) Absorption and re-emission of infrared radiation
	c) Reflection of ultraviolet rays		d) Dispersion of thermal energy

Q.4	Blair, an environmentally conscious consumer, is shopping for groceries at a local store. She notices a food product with an eco-label that states "Organic" on the packaging. Curious about its meaning, she checks the information available to understand the significance of the label. In the context of eco-labelling, what does the presence of an "Organic" label on a food product signify based on Emily's observation?
	a) The product is made using recycled materials.		b) It is manufactured using renewable energy sources.
	c) It's produced using sustainable farming methods without synthetic pesticides or fertilisers.		d) It contains natural ingredients.

Q.5	Consider the case study given below and answer the following question: Case Study: Water Conservation in Singapore Singapore, a water-scarce nation, implemented innovative strategies for water conservation and efficient use. One notable initiative is the "NEWater" program, where wastewater is treated extensively to produce high-grade reclaimed water. This reclaimed water is then used for industrial processes, cooling systems, and even direct consumption after rigorous purification. Additionally, Singapore employs an extensive rainwater harvesting system, collecting rainwater on a large scale for non-potable uses like flushing toilets and watering plants. These initiatives have not only reduced the strain on the city-state's water supply but also ensured sustainable water management for the growing population. What challenges does Singapore addressed by implementing these water conservation initiatives?
	a) Controlling air pollution and promoting soil erosion		b) Preventing excessive flooding and reducing industrial water demand
	c) Alleviating water scarcity		d) Increasing potable water usage

Q.6	As Arctic sea ice melts due to climate change, polar bears struggle to find suitable hunting grounds for seals. This forces them onto land, consuming less energy-rich food and burning more energy for travel. What is the most likely long-term consequence of this scenario for polar bear populations?
	a) Increased birth rates to compensate for energy loss and declining survival rates.		b) Smaller body size in future generations due to reduced nutritional intake.
	c) Enhanced adaptation of polar bears to a terrestrial lifestyle, minimising the impact of sea ice loss.		d) Unaffected polar bear populations as they find alternative hunting strategies in response to climate change.

Q.7	During an Earth Science field trip, students are exploring the impact of rising temperatures on the local ecosystem. The students notice a decline in the population of a particular plant species in the area compared to previous years. Which factor related to climate change is most likely influencing this decline?
	a) Reduced levels of precipitation and increased drought conditions.		b) Increased availability of nutrients in the soil.
	c) Decreased levels of carbon dioxide in the atmosphere.		d) Rising sea levels affecting the soil composition.

Q.8	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.9	A rural community plans to transition from traditional biomass stoves to cleaner, more efficient cookstoves. Considering all of the environmental factors, which statement best summarises the overall impact of adopting cleaner cookstoves?
	a) Cleaner cookstoves improve indoor air quality, reduce fuel consumption, and enhance community health and well-being.		b) Cleaner cookstoves have minimal impact on indoor air quality and community health.
	c) Cleaner cookstoves are less affordable and practical compared to traditional biomass stoves.		d) Cleaner cookstoves have a negative impact on the environment due to increased energy consumption.

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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