International Green Warrior Olympiad Class 8 Previous Year Papers

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Syllabus:

Clean Water and Sanitation

1. Introduction to clean water: Understanding the importance of clean water and proper sanitation, various sources of clean water, methods to purify water, water treatment plans, methods to filtre water
2. Proper sanitation and personal hygiene: Sanitation and personal hygiene practices and their impact on health, access to clean toilets and sanitation facilities
3. Waterborne diseases: Common waterborne diseases (e.g., cholera, dysentery), how waterborne diseases spread, prevention through clean water and sanitation
4. Water scarcity and global water issues: Exploring water scarcity in different regions, the role of climate change in water scarcity
5. Water pollution and treatment: Sources and types of water pollution, consequences of water pollution, wastewater treatment processes
6. Water conservation: The water cycle and its importance, strategies for water conservation, technologies for efficient water use

Affordable and Clean Energy

1. Sources of energy: Exploration of various energy sources (e.g., fossil fuels, renewable energy, nuclear), how energy is generated from different sources, environmental impacts of different energy sources
2. Renewable energy sources: Introduction to renewable energy sources (e.g., solar, wind, hydro, geothermal), how renewable energy systems work, advantages and challenges of renewable energy
3. Energy conservation and efficiency: Understanding the importance of energy conservation, practical tips for saving energy at home and school, energy-efficient technologies and practices
4. Introduction to clean energy: Understanding the concept of clean energy, differentiating clean energy from fossil fuels
5. Clean energy innovations: Innovations in clean energy technology, solar roadways and smart grids
6. Environmental impact of fossil fuels: Understanding the environmental impact of fossil fuel use, air and water pollution caused by fossil fuels

Sustainable Cities and Communities

1. Sustainable transportation and green infrastructure: Introduction to sustainable transportation, the role of electric and hybrid vehicles, bicycles as a sustainable mode of transportation, sustainable urban planning and green infrastructure
2. Characteristics of sustainable cities: Green infrastructure, urban farming, efficient public transportation, operations on renewable energy sources, waste management
3. Universal access to safe, inclusive, and accessible green and public spaces

Responsible Consumption and Production

1. The three r's: reduce, reuse, recycle: Importance of three r's of responsible consumption, strategies to reduce waste and consumption, creative ways to reuse items, introduction to recycling and waste separation
2. Responsible consumption of water and energy: Importance of conserving water and energy, practical tips for saving water and electricity, energy-efficient appliances and lighting
3. Responsible consumption of water and energy: Importance of conserving water and energy, practical tips for saving water and electricity, energy-efficient appliances and lighting

Climate Action

1. Introduction to climate change: Understanding the concept of climate change, differentiating between climate and weather, causes and effects of climate change
2. The carbon cycle: Understanding the carbon cycle, how humans disrupt the carbon cycle
3. Earth's climate systems: Introduction to earth's climate systems, the role of the atmosphere and oceans in climate regulation
4. The greenhouse effect: Explaining the greenhouse effect, how it affects the earth's temperature

Life Below Water

1. Conservation of marine life: Exploring marine protected areas and marine sanctuaries, importance of marine conservation for biodiversity
2. Threats to marine ecosystems: Identifying human activities that harm marine ecosystems (e.g., overfishing, pollution, habitat destruction), discussing the impact of climate change on oceans
3. Marine pollution and plastic waste: Sources and types of marine pollution (e.g., plastic waste, oil spills), impact of pollution on marine life and ecosystems, solutions and cleanup efforts

Life On Land

1. Introduction to terrestrial ecosystems: Understanding terrestrial ecosystems (e.g., forests, grasslands, deserts), importance of land-based environments
2. Endangered species and conservation: Introduction to endangered species, conservation efforts to protect endangered species
3. Major threats to terrestrial ecosystems: Habitat destruction and fragmentation, deforestation, overexploitation, pollution, agriculture practices, etc.

Food Security and Agriculture

1. Food choices and sustainability: The impact of food choices on the environment, reducing food waste at home and school, sustainable farming practices (e.g., organic, local), composting and its benefits
2. Climate change and food security: How climate change affects food production and agriculture, strategies for adapting to changing climates in agriculture

Sample Paper Marking Scheme Free Study Material

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Q.1	During a school project on recycling, Emma was tasked with investigating the environmental benefits of recycling aluminium cans versus manufacturing new ones. Which of the following statements is true regarding this comparison? 1. Recycling aluminium cans saves energy but does not reduce pollution. 2. Manufacturing new aluminium cans consumes less energy than recycling them. 3. Recycling aluminium cans reduces energy consumption and environmental pollution. 4. Manufacturing new aluminium cans have no impact on energy consumption or pollution.
	a) Only 1		b) Only 2
	c) Only 3		d) Both 1 and 4

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	In a coastal region, oil spills are a common occurrence due to shipping activities. Which ecological consequence can be observed in the affected marine ecosystem?
	a) Increased biodiversity and thriving fish populations		b) Coral reefs growing rapidly to filter out oil contaminants
	c) Mass mortality of marine life and damage to habitats		d) Faster recovery of oil-impacted areas than non-impacted ones

Q.4	Robert, an environmentally conscious individual, has recently initiated a practice of composting her food scraps and yard trimmings. He intends to utilise the resultant compost as soil enrichment for her garden beds, aiming to reduce dependency on commercial fertilisers and promote sustainable gardening practices. Considering Robert's endeavour to compost his organic waste and repurpose it for his garden, which sustainable practice does his action primarily demonstrate?
	a) Reduce		b) Recycle
	c) Source reduction		d) Reuse

Q.5	In a coastal ecosystem, the population of shellfish declines drastically due to contamination by harmful algae producing toxins. What type of pollution is this?
	a) Thermal pollution		b) Nutrient pollution
	c) Chemical pollution		d) Biological pollution

Q.6	A company is developing a new product line that includes a range of household cleaning products. The company is committed to using sustainable ingredients and packaging. Which of the following options would be the most environmentally friendly?
	a) Using plant-based ingredients and recycled packaging		b) Using natural ingredients and biodegradable packaging
	c) Using synthetic ingredients and reusable packaging		d) Using recycled ingredients and single-use packaging

Q.7	The government of a city wants to switch to renewable energy sources to help the environment. Which of the following strategies could the city use to promote renewable energy adoption and reduce environmental impact?
	a) Implementing tax incentives for solar energy installations		b) Developing new coal mining projects to boost energy production
	c) Encouraging the use of gasoline-powered vehicles		d) Cutting down more trees to make space for wind farms

Q.8	At a science camp, Mia learns about solar energy. She analyses data and finds that a solar panel generates an average of 1.5 kilowatt-hours (kWh) of electricity per day. If a household uses 6 kWh of electricity daily, how many solar panels would they need to cover their entire daily energy consumption?
	a) 2 solar panels		b) 3 solar panels
	c) 4 solar panels		d) 5 solar panels

Q.9	Among the listed pollutants, which specific element poses the most significant risk to global water quality, often contributing to detrimental algal blooms?
	a) Nitrogen and phosphorous compounds		b) Substances with substantial density
	c) Disease-causing microorganisms		d) Hydrocarbon-based substances

Q.10	Daniel's school initiated a project to implement bioenergy sources to reduce its carbon footprint. As part of their research, they explored various options for renewable bioenergy. They considered using different materials such as agricultural waste, wood chips, and animal manure. Which of the following materials can be considered a renewable source of bioenergy?
	a) Coal briquettes		b) Plastic waste from the school cafeteria
	c) Wood chips from sustainably managed forests		d) Food waste from the school cafeteria burned in an incinerator

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