International Green Warrior Olympiad Class 7 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.10

Q.1	In a small-scale wastewater treatment experiment, a student used an activated sludge process to treat a sample of domestic wastewater as represented below. The student observed a significant reduction in the BOD levels. What is the role of activated sludge in this process?
	a) It introduces chemicals to disinfect the wastewater.		b) It physically filters out impurities from the wastewater.
	c) It separates oil and grease from the wastewater.		d) It provides a medium for the growth of microorganisms that break down organic matter.

Q.2	Deep in the Amazon rainforest, a group of scientists are studying the impact of deforestation on jaguars. They discover that the once continuous forest is now fragmented into smaller, isolated patches. How will this fragmentation MOST likely affect the jaguar population?
	a) Jaguars will have more food available due to increased edge habitat.		b) Jaguars will adapt to smaller territories and maintain stable populations.
	c) Jaguars will be more vulnerable to predators due to reduced cover.		d) Jaguars will migrate to new, untouched areas of the rainforest.

Q.3	At the Eco-Olympiad, a challenge tests students' knowledge of protein sources and their environmental impact. Which protein source would likely have the highest environmental impact?
	a) Tofu		b) Chicken
	c) Lentils		d) Almonds

Q.4	You're at the grocery store and see two types of apples: organic and conventionally grown. Both look delicious. Which choice would be more sustainable?
	a) Both choices are equally sustainable; the growing methods have minimal impact on the environment.		b) Conventionally grown apples, as they are more affordable and readily available, reducing transportation emissions.
	c) Organic apples, as they often require fewer pesticides and chemicals, promoting soil health and biodiversity.		d) There is no difference in sustainability between organic and conventionally grown apples.

Q.5	A group of environmental scientists conducted a study on the significance of land-based environments in maintaining ecological balance. They explored various aspects ranging from biodiversity to human reliance on terrestrial ecosystems. During their research, the scientists observed a correlation between land-based environments and the overall health of marine ecosystems. Choose an appropriate option that best reflects the importance of terrestrial ecosystems for marine life.
	a) Land-based environments have minimal impact on marine ecosystems, thus their significance is negligible.		b) Terrestrial environments act as a buffer, filtering pollutants before they reach the oceans, thus preserving marine habitats.
	c) Marine ecosystems are entirely independent of land-based environments, having no ecological connections.		d) Human activities in terrestrial ecosystems do not affect the quality of water in marine environments.

Q.6	Analyse the graph below representing the water consumption patterns of a city over five years. Identify the trend in water consumption and propose a hypothesis explaining the observed pattern.
	a) Increasing trend; population growth leading to higher demand		b) Fluctuating trend; changes in climate affecting water availability
	c) Decreasing trend; successful implementation of water conservation measures		d) Stable trend; consistent water usage habits in the community

Q.7	Sarah is discussing climate change in her geography class. She mentions that climate and weather are often confused but differ significantly. Which statement best defines climate compared to weather?
	a) Weather is short-term atmospheric conditions, while climate refers to long-term patterns.		b) Climate denotes daily atmospheric changes, while weather indicates seasonal trends.
	c) Weather involves global changes, while climate focuses on regional variations.		d) Climate encompasses extreme events, while weather involves mild fluctuations.

Q.8	You've been tasked with managing a community composting project. Over a period of 20 days, you monitored the temperature changes within the compost pile. Based on the data depicted in the graph below, what could be the likely reason behind the observed fluctuations in temperature throughout the composting process?
	a) Insufficient aeration leading to anaerobic conditions and temperature fluctuations.		b) Adequate moisture levels causing microbial activity and temperature rise.
	c) Lack of moisture causing temperature variations as the decomposition process slows down.		d) Lack of compostable materials resulting in temperature fluctuations due to microbial imbalance.

Q.9	You are tasked with designing a wastewater treatment plant. Which stage of the treatment process is responsible for removing solid particles from sewage water?
	a) Primary treatment		b) Secondary treatment
	c) Tertiary treatment		d) Chlorination

Q.10	You aim to reduce your carbon footprint through dietary changes. Which dietary adjustment would have the most significant positive impact based on their respective average annual carbon footprint?
	a) Consuming more red meat		b) Eating locally sourced produce
	c) Reducing food waste		d) Choosing plant-based proteins

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