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Questions and Answers
What is the primary cause of water pollution?
What is the primary cause of water pollution?
Which of the following is not a characteristic of a population?
Which of the following is not a characteristic of a population?
What term describes the method of removing dust and other particles from water using filters?
What term describes the method of removing dust and other particles from water using filters?
What is the term for biological invasions where weaker species are affected by aggressive alien species?
What is the term for biological invasions where weaker species are affected by aggressive alien species?
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In which temperature do soils develop more slowly?
In which temperature do soils develop more slowly?
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Who discovered the term 'ecosystem'?
Who discovered the term 'ecosystem'?
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What is the term for the ability of something to be maintained or sustained?
What is the term for the ability of something to be maintained or sustained?
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Which of the following pollutants can be classified as primary or secondary?
Which of the following pollutants can be classified as primary or secondary?
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What is the full form of NGOs?
What is the full form of NGOs?
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What is an advantage of ex-situ conservation?
What is an advantage of ex-situ conservation?
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Which of the following is not a marine pollutant?
Which of the following is not a marine pollutant?
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What is the dB threshold of pain?
What is the dB threshold of pain?
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What type of disease is Hepatitis A classified as?
What type of disease is Hepatitis A classified as?
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According to the Wildlife (Protection) Act, how many chapters does it contain?
According to the Wildlife (Protection) Act, how many chapters does it contain?
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What is the main cause of land contamination related to mercury and lead?
What is the main cause of land contamination related to mercury and lead?
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What is the energy conversion efficiency trend observed in ecosystems?
What is the energy conversion efficiency trend observed in ecosystems?
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How many bio-geographical regions are present in India?
How many bio-geographical regions are present in India?
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Which of the following is an aspect of Sustainable Development?
Which of the following is an aspect of Sustainable Development?
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Which one of the following areas in India is a hotspot of biodiversity?
Which one of the following areas in India is a hotspot of biodiversity?
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Which statement is correct with respect to the food chain?
Which statement is correct with respect to the food chain?
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What is the full form of BOD?
What is the full form of BOD?
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Which gas is mainly produced due to incomplete burning of wood?
Which gas is mainly produced due to incomplete burning of wood?
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Why are radiations harmful?
Why are radiations harmful?
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Biodiversity is important because it offers:
Biodiversity is important because it offers:
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Study Notes
Oceans and Earth's Surface
- Approximately 75% of the Earth's surface is covered by oceans.
India's Constitution and Environmental Protection
- Article 48A of the Indian Constitution mandates the protection and improvement of the environment and safeguarding forests and wildlife.
- Article 51A(g) of the Indian Constitution emphasizes the fundamental duty of every citizen to protect the environment and have compassion for living creatures.
Biodiversity Hotspots
- Areas rich in biodiversity with a high percentage of endemic species are considered biodiversity hotspots.
Aravali Mountain Range
- The Aravali mountain range spans across the states of Gujarat, Madhya Pradesh, and Rajasthan.
Extinction and the Domino Effect
- The extinction of weaker species by an aggressive alien species is an example of the domino effect.
Jim Corbett National Park
- Jim Corbett National Park, located in Uttarakhand, is the first established national park in India.
Population Characteristics
- Natality (birth rate) and mortality (death rate) are essential characteristics of a population.
- Stratification refers to the hierarchical arrangement of individuals within a population, which is not a characteristic of a population.
Aerosols and Environmental Impact
- Aerosols can contribute to air pollution and affect climate change.
Noise Pollution Standards
- The recommended noise level for hospitals is 45 decibels (dB) as per noise standards.
Domestic Waste and Pollutants
- Domestic waste that decomposes naturally is considered biodegradable and generally less harmful.
Secondary Pollutants
- Secondary pollutants are formed in the atmosphere by chemical reactions involving primary pollutants and other atmospheric components.
Sewage Composition
- Domestic sewage typically contains dissolved materials like nutrients and bacteria.
Smog
- Smog is a type of air pollution caused by the combination of smoke and fog.
Environmental Education
- Formal environmental education encompasses both classroom learning and activities outside the classroom.
Ecosystem Concept
- Arthur G. Tansley coined the term "ecosystem" to describe the interactions between living organisms and their environment.
Soil Development and Temperature
- Soil development typically occurs at a slower pace in colder temperatures.
Allelopathy
- Allelopathy refers to the chemical interaction between plants, where one species inhibits the growth of another by releasing substances that suppress growth or reproduction.
Water Pollution Sources
- Human activities are the primary contributors to water pollution.
Water Filtration
- Filtration is a technique employed to remove dust and other particles from water.
Environmental Ethics
- Environmental ethics falls under the broader field of environmental philosophy.
Sustainability
- Sustainability refers to the capacity of a system to maintain or sustain itself over time.
Wildlife Week in India
- Wildlife Week is celebrated annually in India.
Water Softening
- Methods like ion exchange are utilized to remove hardness from water.
Air Pollutant Classification
- Air pollutants are primarily classified as natural or anthropogenic (human-made).
- They are also classified as primary (directly emitted from a source) and secondary (formed through atmospheric reactions).
Water Softening
- The softening of water aims to reduce the presence of dissolved minerals that cause hardness.
Minamata Disease
- Minamata disease is caused by mercury poisoning.
Rainwater Harvesting
- Rainwater harvesting is essential for conserving water resources and mitigating water scarcity.
Water-Efficient Irrigation Systems
- Water-efficient irrigation systems like drip irrigation can optimize water usage and conserve resources.
NGOs Full Form
- NGOs stand for Non-Governmental Organizations.
Watershed Management
- The primary objective of watershed management is to manage and protect water resources within a watershed.
Water Quality Standard
- According to the Geological Survey, water with less than 1000 ml/litre of total dissolved solids is considered freshwater.
DDT Persistence
- DDT is a non-biodegradable pollutant, meaning it persists in the environment for a long time.
Threshold of Pain
- The threshold of pain for noise is approximately 146 dB.
Fluorides Pollution
- Fluoride pollution primarily affects dental health, leading to dental fluorosis and weakening of teeth.
Ex-Situ Conservation Advantages
- Ex-situ conservation offers advantages such as protecting endangered species in controlled environments and breeding programs.
Marine Pollutants
- Oil, plastic, and dissolved oxygen are all considered marine pollutants.
Environmental Protection in the Indian Constitution
- Article 48-A and Article 51-A(g) of the Indian Constitution embody provisions for environmental protection.
Ecosystem Energy Flow
- Energy flow in an ecosystem is unidirectional, meaning it flows from producers to consumers.
Forest (Conservation) Act
- The Forest (Conservation) Act was enacted in 1980.
CPCB Full Form
- CPCB stands for Central Pollution Control Board.
PAN Formation
- Peroxyacyl nitrate (PAN) is a secondary pollutant primarily formed through atmospheric photochemical reactions.
Toxic Elements and Land Contamination
- Heavy metals like mercury and lead are toxic and can cause land contamination.
Hepatitis A
- Hepatitis A is a viral infection transmitted through contaminated food and water.
Wildlife (Protection) Act
- The Wildlife (Protection) Act consists of 7 chapters.
Environmental Acts
- The Biological Diversity Act (2002) and the National Green Tribunal Act (2010) are significant environmental protection acts in India.
Food Chain Relationships
- Each component of a food chain represents a trophic level.
- Interconnected food chains form a food web.
- Food chains and webs illustrate the flow of energy through an ecosystem.
Heritage Monument Degradation
- Air pollution poses a significant threat to heritage monuments like the Taj Mahal, Lotus Temple, Golden Temple, and India Gate.
Pollution Control Board Roles
- Pollution control boards play a role in monitoring pollutants, enforcing regulations, educating the public, and advising the government.
BOD Full Form
- BOD stands for Biochemical Oxygen Demand.
Radiation Hazards
- Exposure to radiation can cause various health problems including skin cancer.
Waterborne Diseases
- Bacteria and microorganisms in water can cause intestinal infections, which affect human and animal health.
Incomplete Combustion Waste
- Carbon monoxide (CO) is a primary byproduct of incomplete combustion of wood.
Biodiversity Importance
- Biodiversity contributes to the stability of ecosystems, the atmosphere, and species. It also plays a crucial role in providing essential resources and services.
Water Table Depletion
- Increased groundwater withdrawal for irrigation and other purposes can lead to the depletion of water tables.
Sound Loudness Measurement
- The decibel (dB) scale is used to measure the loudness of sound.
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Description
This quiz covers various topics related to environmental science, including oceans, biodiversity hotspots, and India's constitutional mandates for environmental protection. It also addresses the impact of extinction and highlights significant national parks such as Jim Corbett National Park.
