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.1	During a study of a deciduous forest, students encountered an interesting phenomenon related to tree species. They realised that certain trees played a vital role in supporting biodiversity. What specific characteristic of deciduous trees contributes to their importance in maintaining biodiversity, and how does it influence the forest ecosystem?
	a) Evergreen foliage; providing year-round shelter for diverse bird species and promoting avian diversity.		b) Rapid growth rates; outcompeting other plant species and enhancing overall plant diversity.
	c) Climbing vines; offering vertical habitat structure and promoting arboreal animal diversity.		d) Seasonal leaf shedding; creating nutrient-rich leaf litter and supporting diverse decomposer communities.

Q.2	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.3	Hannah is researching the environmental impact of food choices. She notices that a diet high in animal products contributes significantly to greenhouse gas emissions. What dietary change could Hannah suggest to her community to reduce this impact?
	a) Promoting a solely plant-based diet to eliminate greenhouse gas emissions.		b) Encouraging the consumption of more red meat and dairy products.
	c) Suggesting an increase in processed food consumption to reduce animal product intake.		d) Advocating for a balanced diet with moderate consumption of animal products.

Q.4	The school cafeteria has decided to install energy-efficient appliances. They replaced the older refrigerator and cooking equipment with energy-star rated models. How might this change affect the school's energy consumption over a year?
	a) Increase significantly		b) Decrease gradually
	c) No change		d) Fluctuate unpredictably

Q.5	Your once-sunny city seems shrouded in a hazy cloud of smog, especially during winter. Cars and factories are the main culprits, but everyone suffers from breathing difficulties and reduced visibility. Which air pollutants from fossil fuels are likely contributing to this smog, and how can your city combat these issues?
	a) Fine particulate matter from car dust and industrial activities traps pollutants in the air, worsening smog. Investing in public transportation and green spaces can alleviate the problem.		b) Carbon dioxide, the main greenhouse gas from fossil fuels, directly contributes to smog, and the solution lies solely in switching to renewable energy sources like solar and wind.
	c) Nitrogen dioxide and sulphur dioxide from vehicle exhausts and factory emissions combine with sunlight to form harmful smog, which can be tackled by promoting electric vehicles and stricter emission regulations.		d) Smog is primarily caused by natural phenomena like dust storms and forest fires, and the city should focus on preparing for these events rather than blaming fossil fuels.

Q.6	Researchers observed a significant reduction in phytoplankton populations in a study area. What potential impact does this reduction have on the carbon cycle? 1. Decrease in atmospheric CO2 levels due to reduced photosynthesis. 2. Increase in CO2 levels as phytoplankton absorb less carbon. 3. No effect on the carbon cycle as phytoplankton are not significant carbon absorbers. 4. Elevated carbon sequestration in oceans as phytoplankton decrease.
	a) Only 1		b) Only 3
	c) Both 1 and 4		d) Both 3 and 4

Q.7	In a water quality testing experiment, you're examining a water sample. Upon adding a specific reagent to the sample, it turns blue. What does the colour change of the water sample indicate about its quality in this experiment?
	a) Presence of CO2		b) Neutral pH
	c) High chlorine content		d) Presence of ammonia

Q.8	Create an experiment using two plant pots, one covered with plastic wrap and the other left uncovered. Which observation would support the idea that greenhouse gases contribute to warming?
	a) The covered pot shows lower soil moisture compared to the uncovered one.		b) Both pots exhibit similar temperature increases.
	c) The covered pot shows a greater temperature increase than the uncovered one.		d) Both pots show a decrease in temperature.

Q.9	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.10	In a coastal city, citizens are concerned about the decreasing number of mangrove forests. What role do mangrove forests play in protecting marine ecosystems, and how can their depletion harm marine life?
	a) Mangroves prevent erosion and provide habitats; their depletion can lead to loss of breeding grounds for fish and increased coastal erosion		b) Mangroves absorb excess nutrients; their depletion can lead to overgrowth of marine plants and decreased oxygen levels in water
	c) Mangroves reduce ocean acidity; their depletion can lead to coral bleaching and loss of biodiversity		d) Mangroves filter pollutants; their depletion has no significant impact on marine life

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