Environment Studies (21CIV59) - Ecosystems Quiz
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Questions and Answers

What is a significant factor in the transmission of waterborne diseases?

  • The release of treated fecal matter into water bodies.
  • Consuming properly handled food.
  • Using treated sewage for irrigation.
  • Discharge of industrial wastewater into water sources. (correct)
  • Cholera and typhoid are caused by which type of organism?

  • Viruses
  • Worms
  • Bacteria (correct)
  • Fungi
  • What is the most significant source of natural fluoride?

  • Toothpaste.
  • River water.
  • Groundwater. (correct)
  • Processed food products.
  • What health issue can be caused by excessive nitrate in drinking water?

    <p>Methemoglobinemia (blue baby syndrome). (B)</p> Signup and view all the answers

    What is the primary cause of tooth disfigurement related to water contamination?

    <p>Fluoride. (B)</p> Signup and view all the answers

    The intersection of which two spheres is most crucial for the development of fertile soil?

    <p>Hydrosphere and Lithosphere (D)</p> Signup and view all the answers

    Which statement most accurately describes the biosphere?

    <p>The thin zone of living matter, including all organisms. (B)</p> Signup and view all the answers

    Atmospheric composition is often described using percentages. By what measure are the 78% Nitrogen and 21% Oxygen typically described?

    <p>volume (B)</p> Signup and view all the answers

    Which of these is categorized as a biotic component of an ecosystem?

    <p>None of the above (D)</p> Signup and view all the answers

    How does the flow of energy typically move within an ecosystem?

    <p>Unidirectional (C)</p> Signup and view all the answers

    What is the trophic level of organisms that obtain energy by consuming producers?

    <p>Herbivores (D)</p> Signup and view all the answers

    What term describes a sequence of organisms showing the transfer of energy through eating and being eaten?

    <p>Food chain (C)</p> Signup and view all the answers

    Which of the following is considered a producer within an ecosystem?

    <p>Plants and some bacteria capable of producing their own food (D)</p> Signup and view all the answers

    Which of the following cycles are significantly influenced by soils?

    <p>All of the above (D)</p> Signup and view all the answers

    What is the most abundant element found within the Earth's crust?

    <p>Oxygen (B)</p> Signup and view all the answers

    What is the primary source of organic matter in soil?

    <p>Both plant tissues and litter. (B)</p> Signup and view all the answers

    What factors most influence the extent of leaching in soil?

    <p>Rainfall, irrigation, and soil texture. (A)</p> Signup and view all the answers

    Which of the following is NOT a typical component of soil?

    <p>Ozone (D)</p> Signup and view all the answers

    Which of these is the primary source of fly ash, a significant pollutant?

    <p>Thermal power plants (D)</p> Signup and view all the answers

    Which of these is NOT considered a source of radioactive contamination?

    <p>Modern agricultural practices (A)</p> Signup and view all the answers

    What is a significant consequence of extensive mining practices?

    <p>Loss of grazing and fertile land (C)</p> Signup and view all the answers

    Which authority is responsible for monitoring industrial effluent?

    <p>Pollution control board (D)</p> Signup and view all the answers

    What type of organization is the Centre for Science and Environment?

    <p>Non-government organization (C)</p> Signup and view all the answers

    What is a primary goal of environmental education for all?

    <p>To foster economic development (D)</p> Signup and view all the answers

    Who is recognized as the leader of the Chipko Movement?

    <p>Sunder Lal Bahuguna (D)</p> Signup and view all the answers

    Under which act was the Central Pollution Control Board established?

    <p>Environmental (Protection) Act 1986 (A)</p> Signup and view all the answers

    Which state has the highest women literacy rate in India?

    <p>Kerala (B)</p> Signup and view all the answers

    What does ISO 14000 standards primarily deal with?

    <p>Environmental Management (B)</p> Signup and view all the answers

    What is one of the objectives of the Wild Life (Protection) Act 1972?

    <p>To preserve biodiversity (D)</p> Signup and view all the answers

    Which of the following uses of CFCs is correct?

    <p>All of these (D)</p> Signup and view all the answers

    What is the formula of CFC-114?

    <p>CF2ClCF2Cl (B)</p> Signup and view all the answers

    What factors are considered in calculating the ODP of a specific chemical?

    <p>All of these (C)</p> Signup and view all the answers

    Which of the following species has a zero ODP value?

    <p>HFCs (D)</p> Signup and view all the answers

    Which of the following statements about CFCs is not correct?

    <p>They are very reactive in the troposphere (A)</p> Signup and view all the answers

    In which layer of the atmosphere is the ozone layer primarily found?

    <p>Stratosphere (D)</p> Signup and view all the answers

    Which statement about ozone is NOT true?

    <p>Ozone is not a greenhouse gas (A)</p> Signup and view all the answers

    What does livestock not include among the options listed?

    <p>Horticulture (D)</p> Signup and view all the answers

    Which of the following is NOT a direct consequence of housing activity on ecosystems?

    <p>A need to preserve existing forests for timber production (A)</p> Signup and view all the answers

    What is the primary reason for the increase in acid rain?

    <p>Industrialization (A)</p> Signup and view all the answers

    What is the main purpose of the Environmental (Protection) Act of 1986 in India?

    <p>To protect the environment from harmful activities (C)</p> Signup and view all the answers

    How does modern agriculture contribute to soil degradation?

    <p>All of the above. (D)</p> Signup and view all the answers

    The Environmental (Protection) Act, 1986, deals with which environmental aspect(s)?

    <p>All of the above (D)</p> Signup and view all the answers

    What is the significance of the ISO 14000 standards?

    <p>They are related to environmental management systems. (C)</p> Signup and view all the answers

    Which of the following is an example of a greenhouse gas that is colorless, non-flammable, has a sweetish odor, and is also known as laughing gas?

    <p>Nitrous Oxide (C)</p> Signup and view all the answers

    What is the primary reason for the establishment of the Karnataka State Pollution Control Board (KSPCB)?

    <p>To monitor and control pollution levels in the state (B)</p> Signup and view all the answers

    Signup and view all the answers

    Flashcards

    Causes of water borne disease

    Factors like contamination through sewage and industrial waste contribute to water borne diseases.

    Cholera & Typhoid

    These diseases are primarily caused by bacteria, affecting water and food safety.

    Excessive Nitrate effects

    High levels of nitrates in drinking water can cause 'blue babies', a serious condition.

    Fluoride disfigurement

    Excessive fluoride leads to disfigurement in teeth, affecting dental health.

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    Groundwater dependence

    Groundwater availability depends on rainfall, geological formations, and runoff.

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    Biosphere

    The shell of organic matter on Earth's surface that includes all living things.

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    Components of Atmosphere

    Atmosphere consists of 70% Nitrogen and 21% Oxygen.

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    Biotic Component

    A living part of an ecosystem that affects other organisms.

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    Energy Flow in Ecosystem

    Energy in an ecosystem flows unidirectionally from producers to consumers.

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    Producers

    Organisms like plants that create their own food through photosynthesis.

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    Biological Cycling

    The recycling of inorganic nutrients in ecosystems maintained by producers, consumers, and decomposers.

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    Consumers

    Organisms that feed directly or indirectly on producers.

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    Primary Producers in Forest

    Chlorophyll-containing trees and plants act as primary producers.

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    CFC Uses

    CFCs are used as solvents, refrigerants, and blowing agents.

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    CFC-114 Formula

    The formula for CFC-114 is CF2ClCF2Cl.

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    ODP Factors

    ODP considers species' reactivity, atmospheric lifetime, and molar mass.

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    Zero ODP Species

    HFCs have a zero ozone depletion potential (ODP).

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    Ozone Layer Location

    The ozone layer is located in the stratosphere.

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    Ozone Misconceptions

    Ozone is a major component of smog but protects from UV radiation.

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    Animal Husbandry Definition

    Animal husbandry is the management of animals for agricultural purposes.

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    Gas Produced by Ruminants

    Ruminants produce methane (CH4).

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    Ecosystem disturbance by housing

    Housing activities require large raw materials, disturbing ecosystems.

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    Environmental impact of mining

    Mining activities lead to ecosystem devastation.

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    Effect of modern agriculture on soil

    Modern agriculture contributes to erosion, acidification, and salinization.

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    Acid rain causes

    Acid rain increases due to urbanization and industrialization.

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    Ozone hole discovery

    The ozone hole was first discovered over Antarctica.

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    Environmental Protection Act year

    The Environmental (Protection) Act was enacted in 1986.

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    ISO 14000 standards

    ISO 14000 standards focus on pollution management.

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    Population explosion effects

    Population explosion leads to socio-economic problems, food scarcity, and energy crises.

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    Authority to monitor industrial effluent

    Pollution Control Board is responsible for monitoring industrial effluent in India.

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    Centre for Science and Environment

    A non-government organization that focuses on environmental issues in India.

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    Environmental education goals

    The goal includes awareness, participation, and knowledge improvement for all individuals.

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    Environmental education necessity

    Environmental education is necessary for everyone—children, adults, and scientists alike.

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    Leader of the Chipko Movement

    Sunder Lal Bahuguna is recognized as the leader of the Chipko Movement in India.

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    Central Pollution Control Board establishment

    Established under the Environmental (Protection) Act of 1986.

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    Earth Day observation date

    Earth Day is observed on April 22nd each year to promote environmental awareness.

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    Endangered species in India

    The Indian elephant is considered an endangered species due to habitat loss and poaching.

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    Importance of Soils

    Soils are vital environmental agents involved in cycles like carbon, nitrogen, and phosphorus.

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    Most Abundant Element

    The most abundant element in the Earth's crust is oxygen.

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    Source of Organic Matter

    The primary source of organic matter in soil comes from plant tissues and litter.

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    Leaching Factors

    Leaching extent depends on rainfall, irrigation, and soil texture.

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    Components of Soil

    Ozone is not a component of soil; soil consists of mineral matter, organic matter, and soil air.

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    Source of Fly Ash

    Fly ash is primarily produced by thermal power plants.

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    Soil Pollution Causes

    Major causes of soil pollution include pesticides, chemical fertilizers, and improper waste disposal.

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    Noise Classification

    Occupational noise is a classification of noise, affecting workers in their environments.

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    Study Notes

    Environment Studies (21CIV59) - Model 1 Environment

    • Environment: Surrounding (biotic + abiotic) in which organisms live; the sum total of social, economic, and biological behavior of animals; the total of developmental activities in an area.
    • Unsustainable development: Results from prioritizing economic and social patterns over the quality and quantity of resources.
    • Ecosystem: A self-sufficient unit with all organisms interacting with the physical environment; characterized by co-existence through mutual adjustment.
    • Ecosystem examples: Forest, Desert, Water, Grassland
    • Ecosystem stability factors: Balance between predators and prey, vegetation and herbivores/carnivores, and competing species and biotic factors
    • Nutrient cycling: Closely linked to energy flow, autotrophs, nutrients, and decomposers.
    • Energy flow in an ecosystem: Energy is lost as heat; nutrients are recycled.

    Objective Type Questions (Model 1 Environment)

    • Permissible lead limit in potable water (BIS): 0.05 mg/L
    • Water diseases caused by contaminated water: Cholera, Typhoid, Meningitis, Hepatitis A & E.
    • Water pollution causing factors: Dirty water, deforestation, electromagnetic radiation, radioactivity.
    • Harmful elements in water: High levels of nitrates (blue baby syndrome), pesticides (cancer and neurological disorders), certain chemicals, etc.
    • Habitat: Physical and chemical conditions where organisms live.

    Objective Type Questions (Unit 2 Natural Resources)

    • Percentage of accessible water supply: Approximately 10%.
    • Water quality standards: Related to the United States and Indian standard institutions.
    • Environmental objectives: Encouraging more crop production per drop.
    • Green Revolution: Related to crop variety improvements, use of fertilizers, and expanded irrigation.

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    Description

    Test your knowledge on key concepts in Environment Studies, including ecosystems, unsustainable development, and nutrient cycling. This quiz covers various aspects of ecosystems and their stability, as well as the flow of energy within them. Perfect for students of Model 1 Environment.

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