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

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Q.1	Which of the following scenarios best exemplifies a successful conservation program aiming to protect endangered marine species? 1. A fishing community that continues to use unsustainable fishing practices in a protected marine reserve. 2. A coastal city that builds a new port in a key nesting area for sea turtles. 3.A campaign that educates fishermen about the importance of using turtle-excluder devices. 4. A factory that disposes of its waste directly into a marine sanctuary.
	a) Only 1		b) Only 3
	c) Both 2 and 4		d) Only 4

Q.2	In recent years, there has been a significant rise in the consumption of coal and oil for electricity generation and transportation. Which of the following effects is directly associated with this cause?
	a) Increased occurrences of earthquakes and volcanic eruptions.		b) Decrease in ocean acidity due to reduced carbon emissions.
	c) Rising sea levels due to the melting of polar ice caps.		d) Enhanced agricultural yields due to improved energy infrastructure.

Q.3	You're at the supermarket deciding between locally-grown organic vegetables and conventionally-grown vegetables shipped from a distant country. Both cost the same. Considering climate change:
	a) The local organic option is always better due to reduced transportation emissions.		b) Choose conventionally grown vegetables, as organic farming uses more water.
	c) Consider additional factors like packaging and water usage alongside transportation emissions.		d) Both options have similar climate impacts, so focus on personal preference.

Q.4	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.5	In the city of Sustainia, authorities plan to reduce carbon emissions by integrating renewable energy sources. If a solar panel system installed on public buildings generates 500 kilowatt-hours (kWh) of electricity per month, how much electricity can it generate in a year, and what's its potential impact on carbon emissions if each kilowatt-hour not generated by fossil fuels reduces 0.9 pounds of Carbon dioxide emissions?
	a) 6000 kWh, reducing 5400 pounds of CO2		b) 4500 kWh, reducing 4050 pounds of CO2
	c) 5500 kWh, reducing 4950 pounds of CO2		d) 6500 kWh, reducing 5850 pounds of CO2

Q.6	You are a scientist working at a research lab dedicated to finding ways to improve the recycling process for different types of plastic. Your team is currently focusing on different types of plastic and their recyclability. Which of the following characteristics of plastics is the primary reason why achieving infinite recyclability is challenging?
	a) It is lightweight and prone to wind dispersal.		b) It undergoes chemical changes during the recycling process, reducing its quality.
	c) It is often contaminated with other materials, making it difficult to sort and process.		d) It requires a large amount of energy to melt and re-form.

Q.7	A food distribution company aims to reduce food losses during transportation. They decide to conduct an experiment to assess the impact of transportation conditions on perishable goods' decay rates. They exposed a batch of fruits to varying temperatures and monitored their decay rates. What additional factors should they consider to make the experiment comprehensive and applicable to real-world scenarios?
	a) The presence of pests during transportation.		b) Only temperature fluctuations are relevant in transportation experiments.
	c) The origin of the fruits, not the transportation conditions.		d) Humidity levels, transportation duration, and the type of fruit.

Q.8	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.9	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.10	Scientists have been monitoring the Earth's average temperature for decades. The graph shows the trend they observed. Based on the graph and your understanding of climate change, what is the MOST LIKELY primary cause of the observed rise in Earth's average temperature?
	a) Increased volcanic activity emitting heat-trapping gases into the atmosphere.		b) Excessive use of aerosol sprays releasing harmful chemicals.
	c) Enhanced greenhouse effect due to human activities releasing gases that trap heat.		d) Reduced deforestation leading to a warmer climate.

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