The International Green Warrior Olympiad for Class 10 is designed to challenge students with thought-provoking questions on global environmental issues. It's the perfect platform to connect classroom learning with real-world sustainability challenges-and previous year papers are the key to smart preparation!
Download the Class 10 International Green Warrior Olympiad Previous Year Paper PDF and help your child take a confident step towards becoming a future-ready environmental leader!
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| Q.1 | Q.2 | Q.3 | Q.4 | Q.5 | Q.6 | Q.7 | Q.8 | Q.9 | Q.10 |
Q.1 |
Consider the case study given below and answer the following question: Forests play a critical role in mitigating climate change by capturing and storing carbon dioxide from the atmosphere. Trees absorb carbon dioxide through photosynthesis and use it to grow. The carbon is then stored in the tree's biomass (wood, leaves, branches, and roots) and soil. Forests also help to regulate the climate by releasing water vapour into the atmosphere, which can form clouds and reflect sunlight back into space.
Trees are the most significant carbon sink in forests, storing carbon in their biomass. The amount of carbon stored in a tree depends on its species, size, and age. Young forests capture carbon rapidly due to the quick growth of trees. Middle-aged forests store relatively greater amounts of carbon as trees grow slower but sequester more carbon. Old-growth forests contain large trees that retain carbon for extended periods, albeit at a slower rate due to fewer trees overall.
Forest soils contain diverse forms of carbon influenced by soil type, vegetation, and geography. Soil properties, such as high organic content or frozen conditions, significantly impact carbon storage potential.
The carbon captured by forests is eventually returned to the atmosphere through processes like decomposition and respiration. Different forest types exhibit varying rates of carbon capture and release. Tropical forests capture carbon rapidly but can release it quickly too. In contrast, temperate forests offer a balanced solution.
Effective management strategies, such as forest preservation, sustainable forestry practices, forest expansion, and invasive species control, are crucial in optimising carbon sequestration potential while maintaining ecosystem balance.
A farmer is contemplating converting a section of their farmland into a forest to optimise carbon sequestration potential. Which set of actions would best help the farmer achieve this goal? 1. Plant a mix of tree species known for fast growth and high carbon storage capacity. 2. Plant trees that are native to the region. 3. Leave the soil unplanted and unattended to encourage natural regeneration of native vegetation. |
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Q.2 |
A local river, which serves as a crucial water source for the community, has been experiencing deteriorating water quality. Which parameter is primarily used to indicate organic pollution in freshwater systems? |
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Q.3 |
Your town currently relies on chlorine for water disinfection, but concerns about its byproducts have prompted the exploration of alternative methods. Using ozone treatment during wastewater treatment (shown in the picture below) has emerged as a promising option. |
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Q.4 |
Researchers conducted an experiment to assess the effectiveness of green roofs in reducing indoor temperatures. They compared the energy consumption of buildings with and without green roofs during summer months. The results showed a noticeable decrease in energy usage in buildings with green roofs. |
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Q.5 |
Boreal forests, found predominantly in the Northern Hemisphere, play a significant role in global carbon storage. How do the cold temperatures in these regions affect carbon storage in boreal forests? |
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Q.6 |
Consider the case study given below and answer the following question: |
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Q.7 |
Biodiversity loss due to deforestation can have a cascading effect on the ecosystem. Which of the following is the LEAST likely consequence of widespread species extinction? |
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Q.8 |
Consider the following statements and choose the correct option: |
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Q.9 |
You are watching a wildlife documentary where a pod of migrating humpback whales suddenly changed their course, avoiding a polluted area in the river. It was later shown that the scientists discovered high levels of mercury in the water. |
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Q.10 |
Imagine two households, the Smiths and the Joneses, who both live in similar apartments with identical appliances like refrigerators, washing machines, and TVs. However, their energy-saving habits differ. |
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Your Score: 0/10
Answers to Previous Year Questions from CREST Olympiads:
Q.1 : b | Q.2 : a | Q.3 : c | Q.4 : c | Q.5 : b | Q.6 : d | Q.7 : a | Q.8 : d | Q.9 : b | Q.10 : b