International Green Warrior Olympiad Class 11 Previous Year Papers

Q.1

Consider the case study given below and answer the following question:

Case Study: The Green Guardians of Greenhill High

Greenhill High, a bustling school with over 1,000 students, faced a rising energy bill and growing concerns about its environmental impact. The principal and teachers knew they needed a change, and thus, the "Green Guardians" were born! This student-led initiative focused on three key areas: energy-efficient appliances, LED lighting, and well-insulation.

Appliance Upgrade: The Green Guardians convinced the school board to replace ageing appliances with ENERGY STAR certified models. New washing machines used cold water effectively, while newer dishwashers boasted shorter cycles and automatic shut-offs. These changes resulted in a 20% reduction in kitchen and laundry energy consumption.

Lighting the Way: Replacing traditional incandescent bulbs with LED lights was a game-changer. These LED bulbs lasted 25 times longer, used 80% less energy, and provided brighter, cooler light. Not only did the classrooms become more comfortable, but the school also saved 15% on its lighting costs.

Insulating for Impact: The Green Guardians knew that keeping the school warm in winter and cool in summer would significantly reduce energy use. They proposed adding insulation to the attic and walls, sealing air leaks, and upgrading windows. The results showed a 10% drop in heating and cooling energy needs, creating a more comfortable and sustainable learning environment.

The Green Guardians' efforts didn't stop there. They launched awareness campaigns, organised energy-saving competitions, and even convinced the cafeteria to source local, organic food. Their success story inspired other schools to join the green movement, proving that even small changes can make a big difference.

Imagine Greenhill High expands its sustainability efforts to include electric school buses. How might this decision impact the school's environmental footprint and local air quality?

Q.2

You are an environmental consultant advising a company on the selection of laptops for their office. They prioritise sustainability and want devices that will last longer with responsible usage practices.
The table below outlines key factors important for responsible device usage across four different laptops. Considering the scenario provided, which laptop would you recommend to the company for longer-term use.

Q.3

Emma, a university student, is researching the relationship between food choices and climate change for her environmental science project. She has collected various data and conducted interviews with experts. Which statement best describes the relationship between food choices and climate change based on Emma's findings?

Q.4

As a responsible homeowner, you are considering installing a smart thermostat to control your home's heating and cooling system. You are aware of the potential benefits of smart thermostats, such as energy savings and improved comfort. However, you are also hesitant to make the switch due to concerns about cost and complexity.
Which of the following benefits would NOT incentivise you to install a smart thermostat?

Q.5

Consider the case study given below and answer the following question:

Case Study: The Green Guardians of Greenhill High

Greenhill High, a bustling school with over 1,000 students, faced a rising energy bill and growing concerns about its environmental impact. The principal and teachers knew they needed a change, and thus, the "Green Guardians" were born! This student-led initiative focused on three key areas: energy-efficient appliances, LED lighting, and well-insulation.

Appliance Upgrade: The Green Guardians convinced the school board to replace ageing appliances with ENERGY STAR certified models. New washing machines used cold water effectively, while newer dishwashers boasted shorter cycles and automatic shut-offs. These changes resulted in a 20% reduction in kitchen and laundry energy consumption.

Lighting the Way: Replacing traditional incandescent bulbs with LED lights was a game-changer. These LED bulbs lasted 25 times longer, used 80% less energy, and provided brighter, cooler light. Not only did the classrooms become more comfortable, but the school also saved 15% on its lighting costs.

Insulating for Impact: The Green Guardians knew that keeping the school warm in winter and cool in summer would significantly reduce energy use. They proposed adding insulation to the attic and walls, sealing air leaks, and upgrading windows. The results showed a 10% drop in heating and cooling energy needs, creating a more comfortable and sustainable learning environment.

The Green Guardians' efforts didn't stop there. They launched awareness campaigns, organised energy-saving competitions, and even convinced the cafeteria to source local, organic food. Their success story inspired other schools to join the green movement, proving that even small changes can make a big difference.

The case study mentions the Green Guardians' focus on local, organic food. How does this relate to the concept of clean and affordable energy?

1. Reducing transportation emissions associated with food distribution.
2. Supporting agricultural practices that maximise energy use.
3. Encouraging healthy eating habits, leading to increased energy levels.

Q.6

A community initiated a campaign to clean a polluted river. After a year, water quality improved, and fish species returned. What is the most likely reason for the return of aquatic life?

Q.7

A large oil spill from a tanker accident devastates a coastal ecosystem. Oil slicks coat beaches and contaminate the water, impacting birds, fish, and other wildlife.
In addition to immediate cleanup efforts, what long-term environmental impacts should be monitored and addressed following this disaster?

1. The potential for oil residue to persist and enter the food chain
2. The disruption of coastal habitats and sensitive ecosystems
3. The economic and social impacts on fishing communities and tourism industries

Q.8

A small community in a remote, arid region is facing water scarcity. Their traditional farming practices are no longer sufficient to sustain the community's needs. To ensure long-term food security and water conservation, the community is considering adopting a new farming approach.

Which farming practice would be the most sustainable option for the community to adopt in the long term, considering both water conservation and food production?

Q.9

In urban areas, stormwater runoff often carries pollutants into local water bodies, affecting nearby ecosystems.
Which statement accurately describes the impact of this runoff on aquatic life?

Q.10

Researchers conducted an experiment to assess the impact of ocean acidification on marine snail populations. They exposed snails to different pH levels in controlled environments and measured their growth rates over time. The graph below illustrates the relationship between pH levels, carbonate ion concentration. Based on this data, what is the probable outcome for marine snail populations as the H⁺ increases in the seawater?