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Class 9 / Green Warrior (147 questions)
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by GIANSH GUPTA KHUNDKER
· Class 9
What is life on land?
Green Warrior
Life On Land
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by GIANSH GUPTA KHUNDKER
· Class 9
What is the industrial practice of designing consumer products with a deliberately limited useful life so that they become obsolete or non-functional after a certain period?
Green Warrior
Responsible Consumption and Production
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by GIANSH GUPTA KHUNDKER
· Class 9
What ecological disaster occurs when massive nutrient runoff causes rapid algae growth, depleting dissolved oxygen levels and creating aquatic "dead zones"?
Green Warrior
Life Below Water
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by GIANSH GUPTA KHUNDKER
· Class 9
What environmental phenomenon causes urban regions to experience significantly warmer temperatures than their surrounding rural or natural areas due to human activity?
Green Warrior
Sustainable Cities and Communities
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by GIANSH GUPTA KHUNDKER
· Class 9
Which process describes the gradual accumulation of toxic chemical pollutants, such as heavy metals or pesticides, in the tissues of an organism over time from its environment?
Green Warrior
Life On Land
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by GIANSH GUPTA KHUNDKER
· Class 9
What is the term for the reflective power of a surface, where areas covered in ice reflect solar radiation back into space, helping to cool the planet?
Green Warrior
Climate Action
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by GIANSH GUPTA KHUNDKER
· Class 9
Which ecological water purification process relies on specifically selected aquatic plants and soil microbes to filter and break down contaminants in wastewater naturally?
Green Warrior
Clean Water and Sanitation
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by GIANSH GUPTA KHUNDKER
· Class 9
What design philosophy aims to eliminate industrial waste by ensuring all manufactured products are continuously recycled, reused, or composted without entering landfills?
Green Warrior
Responsible Consumption and Production
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by GIANSH GUPTA KHUNDKER
· Class 9
Which grid-scale renewable energy storage system uses surplus electricity to pump water to a higher elevation reservoir, releasing it through turbines during peak demand?
Green Warrior
Affordable and Clean Energy
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by GIANSH GUPTA KHUNDKER
· Class 9
What is the primary chemical driver causing ocean acidification, which severely threatens marine calcifiers like corals and shellfish?
Green Warrior
Life Below Water
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by GIANSH GUPTA KHUNDKER
· Class 9
Which highly potent greenhouse gas, primarily emitted through agricultural activities and livestock farming, has a global warming potential over 25 times greater than Carbon Dioxide (CO₂)?
Green Warrior
Climate Action
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by GIANSH GUPTA KHUNDKER
· Class 9
What is the environmental hazard associated with the improper disposal of electronic waste (e-waste) like old smartphones and monitors?
Green Warrior
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
Which configuration setting should a "Green Warrior" enable on a computer operating system to drastically reduce its idle power consumption?
Green Warrior
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
What is the primary objective of "Green Computing" in the field of information technology?
Green Warrior
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
A clothing brand claims its new t-shirt line is "100% eco-friendly and climate-neutral" because they plant one tree for every shirt sold, despite continuing to use heavy coal-powered factories. A Green Warrior would classify this as:
Green Warrior
Climate Action
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by GIANSH GUPTA KHUNDKER
· Class 9
What environmental metric calculates the total amount of greenhouse gases generated directly and indirectly by an individual, organization, or product line?
Green Warrior
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
Which greenhouse gas, primarily released through agricultural activities, cattle rearing, and decomposing organic waste, has a significantly higher heat-trapping capability than carbon dioxide?
Green Warrior
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
What percentage of global oxygen production comes from marine organisms like phytoplankton?
Green Warrior
Life Below Water
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by GIANSH GUPTA KHUNDKER
· Class 9
Runoff of agricultural fertilizers into coastal waters causes rapid algae growth that depletes oxygen and suffocates fish. This process is called:
Green Warrior
Life Below Water
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by GIANSH GUPTA KHUNDKER
· Class 9
What are MPAs, which are vital tools for achieving the targets of SDG 14?
Green Warrior
Life Below Water
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Frequently Asked Questions
What are the Class 9 Green Warrior questions on CREST Ask & Answer?
Multiple-choice questions that CREST students write for other Class 9 students, on topics such as Clean Water and Sanitation, Affordable and Clean Energy, Sustainable Cities and Communities. Anyone can answer them free; the student who wrote the question adds the correct option and an explanation.
How do Practice Points work?
Logged-in students earn +1 for answering a question, +3 for asking one, +1 each time someone answers their question and +1 for each upvote; they lose 1 for each downvote. The first five questions on a topic in a class earn a +5 Pioneer bonus. One point is worth a ₹1 discount on Additional Practice purchases. See the rules for asking and answering.
How else can I prepare for the Class 9 IGWO exam?
Student questions are good daily practice, but they are not an exam paper. For the real exam pattern, try the Class 9 sample paper and the Class 9 previous year paper, and check the IGWO syllabus.
What happens to a wrong or copied question?
Any logged-in student can press Report on a question. Questions that break the rules, such as wrong answers, copied pictures or keyboard mashing, are taken off and the points they earned are taken back.