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Showing: Class 9 (1637 questions)

by GIANSH GUPTA KHUNDKER · Class 9

A cargo ship is caught transporting illegally harvested elephant ivory across international borders. Which international agreement is designed to ban the trade of endangered species and their products?

Green Warrior Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which of the following is a direct atmospheric consequence of large-scale deforestation in the Amazon basin?

Green Warrior Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

A logging company operates in a tropical rainforest. To harvest timber sustainably without causing massive soil erosion or destroying the entire ecosystem, which management strategy should they use?

Green Warrior Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

To prevent the collapse of a specific marine fishery due to overfishing, a government introduces a "quota system." What does this mean?

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by GIANSH GUPTA KHUNDKER · Class 9

A rural village experiences a sudden outbreak of cholera. Medical investigators trace the source back to a local well contaminated by overflowing sewage. How is cholera scientifically classified?

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by GIANSH GUPTA KHUNDKER · Class 9

An industrial plant discharges small amounts of a persistent heavy metal (mercury) into a river. Over time, predatory fish at the top of the river's food chain accumulate lethal levels of mercury in their tissues. What are the dual processes driving this phenomenon?

Green Warrior Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which soil conservation technique involves planting crops across a slope following its elevation lines rather than up and down the hill?

Green Warrior Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Heavy irrigation in an arid climate with high evaporation rates causes water to be drawn up through the soil profile by capillary action. What environmental problem does this create?

Green Warrior Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

An environmental scientist wants to estimate the plant species population density across a clearing without introducing bias. Which sampling approach is most appropriate?

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by GIANSH GUPTA KHUNDKER · Class 9

An island nation faces critical fresh water shortages but has vast access to ocean water. Which process can isolate pure drinking water while leaving behind concentrated brine?

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by GIANSH GUPTA KHUNDKER · Class 9

A country wants to minimize the environmental impact of an abandoned open-pit mine. Which sustainable strategy involves filling the pit with structural waste and covering it with topsoil to restore vegetation?

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by GIANSH GUPTA KHUNDKER · Class 9

Which mining method is most suitable when a valuable mineral deposit is located deep underground beneath thick layers of stable rock?

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by GIANSH GUPTA KHUNDKER · Class 9

What component within a wind turbine is responsible for increasing the rotational speed of the shaft to make electricity generation efficient?

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by GIANSH GUPTA KHUNDKER · Class 9

Which greenhouse gas is the primary contributor to man-made global warming due to the extensive burning of fossil fuels like coal and oil?

Green Warrior Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

In a natural gas power plant, what is the initial form of energy stored inside the fuel before it is processed?

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by GIANSH GUPTA KHUNDKER · Class 9

Which of the following is NOT part of the traditional 4Rs framework used by a "Green Warrior" to manage waste sustainably?

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by GIANSH GUPTA KHUNDKER · Class 9

An economy that reduces environmental risks, decreases ecological scarcities, and aims for sustainable development is known as a:

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by GIANSH GUPTA KHUNDKER · Class 9

The United Nations Sustainable Development Goal 6 (SDG 6) specifically aims to ensure availability and sustainable management of which resource by 2030?

Green Warrior Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which subatomic particle carries a negative charge and orbits the nucleus?

Science Other 0 0 answers 0%
by GIANSH GUPTA KHUNDKER · Class 9

Which separation method is most suitable for recovering pure water from a salt water solution?

Science Other 0 0 answers 0%

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