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

Q.1

Q.2

Q.3

Q.4

Q.5

Q.6

Q.7

Q.8

Q.9

Q.10

Q.1	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.2	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.3	In a bustling city, Liam noticed a power plant emitting a dense cloud of smoke. He learned that the power plant burned coal, releasing sulphur dioxide and other pollutants. Which environmental issues are primarily associated with this scenario?
	a) Soil erosion and deforestation		b) Desertification and habitat loss
	c) Air and water pollution		d) Noise pollution and thermal expansion

Q.4	What is the primary function of a hydroelectric power plant in generating electricity?
	a) Converting water flow into mechanical energy that directly powers turbines.		b) Storing water in reservoirs to control floods and generate electricity simultaneously.
	c) Directly converting water pressure into electrical energy through underwater turbines.		d) Using water to cool down generators and facilitate electrical production.

Q.5	Consider the following scenario and choose the correct option. Scenario: You're a college student living in a shared hostel room with two other roommates. You've noticed increased common illnesses among your roommates, like colds, flu, and stomach upsets. You suspect poor hygiene might be playing a role. Instructions: Choose the MOST LIKELY way your hygiene habits could contribute to your roommates' health problems, and explain your reasoning.
	a) You always shower after gym class, but you only wash your hands before eating.		b) You keep your laundry hamper overflowing with dirty clothes for days before washing them.
	c) You clean your desk surface regularly, but you rarely disinfect your phone or laptop keyboard.		d) You use a common towel to dry your hands after washing them in the shared bathroom.

Q.6	Sarah wanted to contribute to recycling efforts in her community. She collected various items like plastic bottles, glass jars, and old newspapers. How should Sarah effectively segregate these items for recycling?
	a) Recycle all the magazines without thinking.		b) Throw away the magazines because they're old.
	c) Reuse some magazines for crafts and recycle the rest.		d) Keep all the magazines because they're pretty.

Q.7	At Greenfield Middle School, an initiative to reduce energy consumption was implemented by installing energy-saving devices. The table given illustrates the electricity and gas consumption before and after the installation of these devices. What is the percentage reduction in electricity consumption after the installation of energy-saving devices? Energy Consumption (kWh) Before Installation After Installation Electricity 450 300 Gas 200 150
	a) 25%		b) 33.33%
	c) 50%		d) 66.67%

Q.8	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.9	Consider the following scenario in the context of food security and agriculture: In a region with unpredictable weather patterns, farmers are facing challenges in ensuring food security for the community. They are exploring different strategies to enhance agricultural productivity and resilience. Which of the following measures would be most effective in addressing the challenges and ensuring food security in this scenario?
	a) Introducing crop diversification to reduce vulnerability to weather fluctuations.		b) Relying solely on chemical fertilisers to boost crop growth.
	c) Implementing a monoculture approach to focus on high-yielding crops.		d) Ignoring technological advancements and sticking to traditional farming methods.

Q.10	Amelia observed that during heavy rains, one part of the city experienced flash floods and drainage issues due to excessive concrete, while another region with abundant green spaces remained relatively unaffected. Why did the area with green spaces fare better?
	a) The city's overall topography favored water runoff in green spaces.		b) Concrete areas had more efficient drainage systems in place.
	c) Green spaces effectively absorbed excess water, preventing flooding.		d) The presence of concrete minimised water absorption, causing flooding.

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