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ISC (Science) ISC Class 12 - CISCE Important Questions for Environmental Science (Theory)

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Environmental Science (Theory)
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Read the following passage and answer the question given below.

Despite being a major food producer with extensive food security schemes and the largest public distribution system in the world, India still grapples with significant levels of food insecurity, hunger, and child malnutrition.

The Global Hunger Index (GHI), 2022, ranked India 107 among 121 countries.

In the light of the above passage, discuss three major problems encountered in attaining food security.

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Chapter: [0.02] Food
Concept: Food

Read the following passage and answer the question given below.

Despite being a major food producer with extensive food security schemes and the largest public distribution system in the world, India still grapples with significant levels of food insecurity, hunger, and child malnutrition.

The Global Hunger Index (GHI), 2022, ranked India 107 among 121 countries.

Discuss two main features of the Food Security Law.

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Chapter: [0.02] Food
Concept: Food

Discuss the purpose of Environmental Economics.

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Chapter: [0.02] A Critical Appraisal of Conventional Paradigm of Development from the Viewpoints of Sustainability, Environmental Impact and Equity
Concept: A Critical Appraisal of Conventional Paradigm of Development from the Viewpoints of Sustainability, Environmental Impact and Equity

Write the expanded form of the following.

TRIPS

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Chapter: [0.03] International Trade
Concept: International Trade

Write a term for the description given below.

Government’s decision to restrict the international trade to protect and promote domestic business.

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Chapter: [0.03] International Trade
Concept: International Trade

A monkey and a butterfly inhabit the same area in a forest. Each follows a different life pattern for its survival.

  1. Identify the survival strategies followed by the two species mentioned above.    (1)
  2. In the event of a natural calamity, the monkey flees the forest and moves to a stable environment while the butterfly stays in the forest and struggles to survive. Account for the differences in their reactions to the natural calamity.    (3)
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Chapter: [0.03] Stewardship of Land (E.G. Wendell Berry)
Concept: Stewardship of Land (E.G. Wendell Berry)

Explain any four ecological impacts of Transnational Companies.

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Chapter: [0.03] Economic Status and Welfare (Net Economic Welfare, Nature Capital, Ecological Capital, Etc.)
Concept: Economic Status and Welfare (Net Economic Welfare, Nature Capital, Ecological Capital, Etc.)

Given below are a few lines from a poem by Wendell Berry.

“Sowing the seed,
My hand is one with the Earth.
Having cared for the plants,
My mind is one with the air.
Eating the fruit,
My body is one with the earth.”

How do the lines given above bring forth Wendell Berry’s idea of conservation?

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Chapter: [0.03] Stewardship of Land (E.G. Wendell Berry)
Concept: Stewardship of Land (E.G. Wendell Berry)

Eris are popular rainwater harvesting systems of Tamil Nadu in India. Which one of the following categories do these systems fall under?

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Chapter: [0.04] Water Testing
Concept: Water Testing

Water crisis can lead to social unrest and misery. Explain the statement with reference to Cochabamba.

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Chapter: [0.04] Water Testing
Concept: Water Testing

Read the conversation given below and answer the question that follow.

The next time you take printouts unnecessarily or you throw a paper in to the bin, think for a minute as to how many trees have been felled to manufacture it and how much wastewater generated in the process for something you use so often every day.

Can you take out some time from your everyday routine and devote it to starting a simple recycling program at your school or your neighbourhood? Not only you would save our planet from the torture of felling greenery, but you would also reduce generation and dumping of waste into the environment.

Which three indicators of water quality should be checked? What is their significance if you want to recycle wastewater generated in the case above?

Appears in 1 question paper
Chapter: [0.04] Water Testing
Concept: Water Testing

Read the conversation given below and answer the question that follow.

The next time you take printouts unnecessarily or you throw a paper in to the bin, think for a minute as to how many trees have been felled to manufacture it and how much wastewater generated in the process for something you use so often every day.

Can you take out some time from your everyday routine and devote it to starting a simple recycling program at your school or your neighbourhood? Not only you would save our planet from the torture of felling greenery, but you would also reduce generation and dumping of waste into the environment.

DEWATS (Decentralised Waste Water Treatment System) is a simple and cost effective method of recycling water. Explain the statement.

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Chapter: [0.04] Water Testing
Concept: Water Testing

Write a term for the description given below.

The maximum number of individuals that can be supported by an ecosystem without causing any damage to the environment.

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Chapter: [0.05] Threats to the Ecosystem
Concept: Threats to the Ecosystem
The thermometers used commonly in households are high risk sources of mercury which is a toxic soil pollutant. It can pose a serious health hazard if not disposed carefully. It should not be discarded carelessly but returned to the shopkeeper who should then return it to the manufacturer for its safe disposal or resource retrieval.

Under which environmental scheme is the shopkeeper responsible for the safe disposal? Explain.

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Chapter: [0.05] Soil Testing
Concept: Soil Testing

The tiger has been placed in its coffin. Nothing short of a miracle can save tigers in the wild in this country.

In the light of the above statement, examine the effectiveness of Project Tiger launched by the Government in 1972.

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Chapter: [0.05] Threats to the Ecosystem
Concept: Threats to the Ecosystem

Differentiate between tied aid and untied aid. Support your answer by giving one example for each.

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Chapter: [0.07] Sustainable Development
Concept: Sustainable Development
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