International Green Warrior Olympiad Class 11 Sample Paper

Q.1

Climate-Smart Agriculture aims to achieve three main goals simultaneously: increased productivity and food security, enhanced resilience to climate change, and reduced greenhouse gas emissions. Which of the following practices most effectively addresses all three goals?

Q.2

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.3

A small rural community plans to enhance its energy generation capacity by installing a hydroelectric dam to utilise the potential energy of water from a nearby river. Initially, the dam has a reservoir depth of 20 meters.
If the community decides to double the reservoir depth to 40 meters by expanding the dam, what effect does this have on energy production?

Q.4

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.

Why is insulation in buildings crucial for reducing energy consumption?

Q.5

An experiment is conducted to compare the efficiency of different rainwater harvesting systems in a specific location. System A uses rooftop collection, while System B utilises surface runoff collection. Which system is likely to yield more water in an area with infrequent but heavy rainfall?

Q.6

In a scenario where a factory discharges untreated industrial wastewater containing high levels of heavy metals into a nearby river, what long-term impact would this have on the aquatic ecosystem?

Q.7

In a biodiversity conservation project, two strategies were implemented to protect endangered species: Strategy A focused on captive breeding programs, while Strategy B emphasised habitat restoration and protection. Which strategy is more likely to result in the long-term conservation of endangered species?

Q.8

A community in an arid region has implemented a rainwater harvesting system to collect and store rainwater for various uses. The community relies heavily on this system as their primary source of water. However, due to climate change, the rainfall patterns have become unpredictable. The graph below shows the rainfall pattern over the past 8 years.
Which factor is most likely to limit the effectiveness of the rainwater harvesting system in this scenario?

A. Inadequate storage capacity hindering collection during periods of heavy rainfall
B. Minimising the environmental impact of excessive runoff during heavy rainfall periods.
C. Unpredictable collection amounts resulting in insufficient water supply during dry spells.
D. Contamination risks associated with pollutants present in the collected rainwater.

Q.9

Analyse the data provided in the table below, which represents the Biological Oxygen Demand (BOD) levels (mg/L) of influent and effluent wastewater samples before and after treatment.
Identify the accurate statements regarding the effectiveness of the wastewater treatment process.

A. Higher BOD in Sample B after treatment indicates higher dissolved oxygen levels, ensuring healthier aquatic ecosystems.
B. Reduction in BOD levels in Samples A and C signifies a decrease in the amount of organic pollutants present in the water.
C. The reduction in BOD in Samples A and C, the risk of eutrophication decreases, preserving the balance of nutrients and oxygen.
D. The treatment process for Sample B was ineffective as BOD levels increased after treatment.

Q.10

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

Case Study: Rejuvenating the Red Desert

The once fertile plains of the Red Desert now lie barren and parched. Decades of unsustainable agricultural practices, deforestation, and overgrazing have stripped the land of its topsoil, leaving behind a landscape of eroded gullies and windblown sand. The local community, dependent on the land for their livelihood, faces diminishing harvests and increasing dust storms.

The Challenge: Restoring the Red Desert requires a multi-faceted approach that addresses both the physical and social dimensions of land degradation. The key challenges include:

-Soil erosion and nutrient depletion: Restoring soil fertility is crucial for supporting plant growth.
-Water scarcity: The arid climate presents a significant challenge for plant growth. Implementing water harvesting systems like rainwater cisterns and promoting drought-resistant crops can optimise water use.
-Loss of biodiversity: Restoring native plant and animal populations is essential for creating a healthy and resilient ecosystem. This can involve assisted regeneration, seed dispersal, and creating wildlife corridors.
- Community engagement: Sustainable land management requires the active participation of the local community. Building trust, providing training, and ensuring equitable access to resources are crucial for long-term success.

The Outcome: Over time, the Red Desert undergoes a remarkable transformation. Eroded gullies are filled with fertile soil, native plants flourish, and animal populations return. The community experiences increased food security and improved livelihoods, thanks to sustainable farming practices and diversified income sources. The success of the program serves as a model for other communities facing land degradation, demonstrating the power of collaboration and knowledge-based solutions in restoring lost ecosystems and building a sustainable future.

In an experiment analysing soil quality in the Red Desert, which factor would likely exhibit the most substantial improvement after implementing cover cropping techniques compared to conventional farming methods?