Environmental Science Quiz

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Questions and Answers

Which of the following is NOT a negative environmental impact associated with the Green Revolution?

  • Land degradation
  • Increased greenhouse gas emissions
  • Deforestation
  • Increased biodiversity (correct)

Which pillar of sustainability focuses on ensuring fair and equitable treatment for all people and access to resources?

  • Social Justice (correct)
  • Environmental
  • Economic
  • Technological

Which of these human activities is known to release ammonia into the atmosphere?

  • Transportation
  • Agriculture (correct)
  • Household activities
  • Industrial processes

The ozone layer is primarily located in which atmospheric layer?

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

Which type of UV radiation is primarily absorbed by the ozone layer?

<p>UV-B and UV-C (B)</p> Signup and view all the answers

What is one of the main functions of the ozone layer?

<p>To absorb harmful UV radiation and protect living organisms. (C)</p> Signup and view all the answers

Which of the following is a long-term health effect of air pollution?

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

Which of these technologies contributes to air pollution through energy production?

<p>Coal power plants (A)</p> Signup and view all the answers

Which environmental worldview places primary importance on the well-being of all living beings?

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

What is a key characteristic of Traditional Ecological Knowledge (TEK) according to the content?

<p>It emphasizes interconnectedness. (B)</p> Signup and view all the answers

Which field of study is primarily concerned with the Earth's physical structure and processes?

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

Which of the following best describes the focus of Environmental Science?

<p>Studying the interactions between organisms and their environment using scientific principles. (C)</p> Signup and view all the answers

What distinguishes Environmental Studies from Environmental Science?

<p>Environmental Studies is an interdisciplinary approach that includes social, cultural, and political aspects, while Environmental Science examines pure scientific principles. (B)</p> Signup and view all the answers

What was a major environmental consequence of the Industrial Revolution according to the provided content?

<p>Significant depletion of natural resources and pollution. (D)</p> Signup and view all the answers

Which field of study focuses on the analysis and prediction of weather patterns?

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

Which perspective emphasizes the interdependence of all living organisms and ecosystems?

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

Which of the following contributes to wind erosion?

<p>Dry and open areas (B)</p> Signup and view all the answers

What is a primary cause of water erosion?

<p>Heavy rainfall and runoff (D)</p> Signup and view all the answers

Which of these practices can contribute to salinity build-up in the soil?

<p>Excessive irrigation with poor water quality (C)</p> Signup and view all the answers

Which of these is NOT a consequence of soil degradation?

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

What is the main function of a plant's roots?

<p>Storing water and nutrients (D)</p> Signup and view all the answers

Which part of a flower is responsible for producing pollen?

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

What is the primary role of leaves in a plant?

<p>Producing food through photosynthesis (B)</p> Signup and view all the answers

Which of these is NOT a method used to mitigate soil degradation?

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

What role do decomposers play in soil formation?

<p>They break down dead material, contributing to soil fertility. (A)</p> Signup and view all the answers

How does soil texture affect plant growth?

<p>It affects water retention and nutrient availability. (B)</p> Signup and view all the answers

Which soil type is considered ideal for most plant growth?

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

What does the colour of the soil indicate?

<p>The mineral concentration and drainage (D)</p> Signup and view all the answers

What influences soil structure?

<p>Root activity and microbial organisms (D)</p> Signup and view all the answers

What is one way that pollution affects the economy?

<p>Increases healthcare costs due to pollution-related illnesses. (D)</p> Signup and view all the answers

Which indicator is primarily used to assess the acidity or alkalinity of water?

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

How does acid rain affect aquatic ecosystems?

<p>It pollutes water and disrupts aquatic ecosystems. (C)</p> Signup and view all the answers

What distinguishes climate from weather?

<p>Climate is typically observed over decades, while weather is specific to a short time frame. (C)</p> Signup and view all the answers

What type of species has a disproportionate effect on its environment?

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

Which factor is NOT considered an abiotic factor in aquatic ecosystems?

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

Which of the following contributes to ocean acidification?

<p>Pollution from greenhouse gases. (B)</p> Signup and view all the answers

Which phenomenon is a consequence of global warming?

<p>Intensification of extreme weather events. (D)</p> Signup and view all the answers

What is a potential consequence of excessive groundwater extraction?

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

What does water availability refer to?

<p>The amount of water accessible for various uses (D)</p> Signup and view all the answers

Which type of pollution is characterized by a single identifiable source?

<p>Point Source Pollution (D)</p> Signup and view all the answers

Which process involves the breakdown of rocks into smaller particles?

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

What can excessive irrigation lead to in terms of water resources?

<p>Decreased availability of water for other purposes (A)</p> Signup and view all the answers

What is biological weathering?

<p>Decomposition of rocks by living organisms (D)</p> Signup and view all the answers

Which factor does NOT contribute to soil erosion?

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

What is a characteristic effect of non-point source pollution?

<p>Eutrophication of water bodies (A)</p> Signup and view all the answers

Flashcards

Anthropocentric Worldview

A worldview that focuses on human well-being and economic interests, prioritizing the environment for human benefit.

Biocentric Worldview

A worldview that emphasizes the equal value of all living things, advocating for the intrinsic worth of every species.

Ecocentric Worldview

A worldview that prioritizes the health and stability of entire ecosystems, recognizing the interdependence of living organisms.

What is Traditional Ecological Knowledge (TEK)?

Traditional ecological knowledge (TEK) is a system of knowledge passed down through generations, focused on understanding the interconnectedness of nature and ensuring sustainability.

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What is Ecology?

Ecology is the science that examines the interactions between organisms and their environment, focusing on how they influence each other.

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What is Atmospheric Science?

Atmospheric science is the study of Earth's atmosphere, incorporating weather patterns, climate changes, and their impact on the environment.

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What is Environmental Science?

Environmental science combines various scientific disciplines to study the environment, specifically focusing on identifying solutions to environmental problems.

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What is Environmental Studies?

Environmental studies is an interdisciplinary field that examines the environment from various perspectives, including social, economic, and political factors, to address environmental issues.

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Climate

The long-term average of weather patterns in a region, usually observed over decades. It describes the overall weather trends and seasonal variations.

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Weather

The short-term atmospheric conditions at a specific location and time. It includes factors like temperature, humidity, wind, and precipitation.

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Invasive Species

A non-native species that can disrupt ecosystems. It can outcompete native organisms and cause imbalances.

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Keystone Species

Species that play a crucial role in maintaining the health and stability of an ecosystem. Their absence can have a significant impact on the entire community.

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Indicator Species

Organisms sensitive to environmental changes, indicating the health of an ecosystem. Their presence or absence can signal potential problems.

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pH of water

The measure of acidity or alkalinity of water, usually measured on a scale of 0-14, with lower values indicating higher acidity.

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Dissolved Oxygen in water

A critical factor for aquatic life, representing the amount of oxygen dissolved in water. Adequate dissolved oxygen is crucial for fish and other organisms to survive.

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Environmental Impacts of the Green Revolution

The Green Revolution's positive effects on food production came with negative environmental consequences, including deforestation, soil degradation, loss of biodiversity, and increased greenhouse gas emissions.

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Three Pillars of Sustainability

A concept that emphasizes balancing environmental protection, economic growth, and social equity. For example, using renewable energy sources is good for the environment, creates jobs, and provides energy access.

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Water Supply

The process of water delivery to homes and businesses through a network of pipes and pumps.

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Function of the Ozone Layer

The ozone layer, located in the stratosphere, is vital for absorbing harmful UV radiation from the sun, shielding life on Earth from damaging effects.

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Causes of Air Pollution

Air pollution is a major environmental issue caused by various human activities and technologies, such as transportation, industrial processes, agriculture, and energy production.

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Effects of Air Pollution on Human Health

Air pollution can negatively impact human health, causing respiratory illnesses like asthma and bronchitis, increasing heart disease risk, and even contributing to premature deaths.

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Nitrogen Oxide Pollution

A key component of air pollution, nitrogen oxide, is primarily released from vehicles and industrial processes, contributing to respiratory problems and acid rain.

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Sustainability

The process of using resources and energy efficiently to minimize waste and environmental impact. It involves adopting sustainable practices in everyday life and industrial processes.

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Land Degradation

Land degradation, caused by factors like deforestation, overgrazing, and unsustainable farming practices, leads to soil erosion, reduced fertility, and loss of biodiversity.

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Weathering

The process of rocks breaking down into smaller pieces due to factors like temperature changes, chemicals, or living organisms.

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Erosion

The movement of soil particles by wind, water, or ice, causing loss of topsoil.

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Deposition

The settling of soil particles carried by wind, water, or ice.

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Groundwater

Water stored beneath the Earth's surface in aquifers.

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Groundwater recharge

The process of filling aquifers with water.

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Point source pollution

Pollution from a single, identifiable source, like a factory or oil spill.

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Non-point source pollution

Pollution from diffuse sources, like runoff from farms or cities.

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Water availability

The amount of water available for use in agriculture, households, and industries.

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Decomposition of Organisms

The breakdown of dead plant and animal matter by decomposers such as bacteria, fungi, and worms. This contributes to the organic matter of the soil, affecting its fertility and nutrient content.

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Soil Texture

The proportion of sand, silt, and clay in soil. Different textures impact water retention, root penetration, and nutrient availability.

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Soil Structure

Refers to how soil particles are arranged into aggregates or clumps. Good soil structure promotes air circulation and water filtration. It is influenced by organic material, root activity, and microbial organisms.

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Soil pH

Measures the acidity or alkalinity of the soil, which affects nutrient availability for plants. It can be influenced by weathering processes. For example, weathering of silicate minerals can lead to acidic soils, while limestone parent material can produce alkaline soils.

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Soil Colour

The color of soil can reveal information about its mineral concentration and drainage. Dark brown or black soils indicate high organic matter content, while red or yellow soils often indicate iron-rich content.

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Wind Erosion

The process of wind removing topsoil, common in dry areas with little vegetation.

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Water Erosion

The removal of soil by rainfall and runoff, especially on slopes, caused by rainfall, flooding, and improper land use.

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Salinity

The build-up of salts in the soil, often due to irrigation or poor drainage, harming plant roots and reducing crop yields.

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Desertification

The transformation of fertile land into desert, caused by overgrazing, deforestation, and climate change.

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Roots

The main root system of a plant, anchoring it in the soil, absorbing water and nutrients, and storing food.

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Stem

The supporting structure connecting roots and leaves, transporting water, nutrients, and food, also storing food in some plants.

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Leaves

The food-making factories of a plant, using sunlight to create energy, also responsible for gas exchange and water loss.

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Flowers

The reproductive structures of plants, containing male and female parts, attracting pollinators.

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Study Notes

Environmental WorldView

  • Anthropocentric focuses on the environment for human well-being and economic interests
  • Biocentric values all living beings equally, emphasizing the intrinsic worth of all species
  • Ecocentric highlights the interdependence of living organisms and ecosystems, and promotes the stability of ecological systems

Traditional Ecological Knowledge (TEK)

  • TEK is cumulative local knowledge essential for survival
  • TEK emphasizes interconnectedness and sustainability

Understanding Environmental Sciences

  • Ecology studies organism relationships to each other and their environment
  • Atmospheric science analyzes weather, climate, and global change
  • Biology studies living organisms in various specialized fields
  • Chemistry identifies substances, interactions, and changes in matter
  • Physics studies matter and energy

Oceanography, Geology, and Human Geography

  • Oceanography studies the physical and biological properties of the sea
  • Geology analyzes the Earth's physical structure, its history, and the processes acting on it
  • Human geography examines human activity's impact on Earth's surface

Environmental Science vs. Environmental Studies

  • Environmental science uses scientific principles to study and solve environmental problems
  • Environmental studies is interdisciplinary, examining environmental issues from social, economic, political, and cultural perspectives

Industrial Revolution Impacts

  • Environmental degradation, natural resource depletion, water/air pollution, and urban overcrowding

Green Revolution Impacts

  • Deforestation, land degradation, biodiversity loss, and increased greenhouse gas emissions

Three Pillars of Sustainability

  • Environmental: preserving natural resources and ecosystems
  • Economic: ensuring long-term resource availability through sustainable practices
  • Social Justice: fair and equitable treatment of all people, ensuring access to resources

Human Activities and Technologies Affecting Air Quality

  • Activities: transportation, industrial processes, agriculture, and household activities
  • Technologies: energy production, consumer electronics, and waste management

Structure and Function of the Ozone Layer

  • Location: stratosphere, 10-30 km above Earth's surface
  • Composition: ozone (O₃) molecules
  • Function: absorbs UV radiation, regulates temperature, supports ecosystems, and preserves natural cycles

Effects of Air Pollution on Human Health

  • Respiratory diseases, heart attacks, strokes, lung cancer, and premature deaths

Effects of Air Pollution on the Environment

  • Acid rain, global warming, smog formation, soil degradation, and wildlife health issues

Climate vs. Weather

  • Climate: long-term weather patterns over decades
  • Weather: short-term atmospheric conditions

Aquatic Ecosystem Health

  • Chemical indicators: pH, dissolved oxygen, nutrients, temperature, and turbidity

Water Supply Impacts

  • Water supply provision by public utilities
  • Stormwater runoff from impervious surfaces
  • Habitat protection, management, and conservation efforts
  • Water rights: legal frameworks governing water use and management

Environmental Challenges

  • Eutrophication: excess nutrients in lakes leading to dead zones
  • Hypoxia
  • Loss of biodiversity
  • Harmful algal blooms
  • Economic impacts on fisheries and tourism

Impacts of Irrigation

  • Soil salinization due to improper irrigation practices
  • Land degradation
  • Reduced agricultural productivity

Water Quality and Availability

  • Overextraction problems
  • Groundwater contamination
  • Water demand increases
  • Water availability for agriculture, households, and industries

Point Source vs. Non-Point Source Pollution

  • Point source pollution comes from identifiable sources (factories, sewage)
  • Non-point source pollution arises from diffuse sources (runoff, agriculture)

Key Processes in Soil Formation

  • Physical weathering (mechanical forces like temperature and wind)
  • Chemical weathering (reactions with water, oxygen, acids)
  • Biological weathering (plant roots, bacteria, fungi)

Soil Properties

  • Color (mineral content and drainage)
  • Texture (proportion of sand, silt, and clay)
  • Soil structure (arrangement of soil particles)
  • Soil fertility and nutrient content

Soil Degradation and Mitigation

  • Wind and water erosion, salinity, and desertification
  • Mitigation strategies include erosion control, soil fertility management, reforestation/afforestation, and improved irrigation techniques

Parts of a Plant

  • Roots (anchoring, nutrient/water absorption), stem (support, transport), leaves (photosynthesis), flowers (reproduction), fruits (seed protection and dispersal), and seeds (embryo and nutrients)

Parts of a Flower

  • Stamen (male reproductive part), pistil (female reproductive part)

Plant Life Cycle

  • Stages: seed stage, germination, seedling stage, vegetative growth, flowering, pollination, fertilization, fruit/seed development, seed dispersals, dormancy, and regrowth

Different Types of Agriculture

  • Industrial agriculture (high production, but often harmful)
  • Traditional agriculture (soil health emphasis, local economies)
  • Subsistence agriculture (local food security)
  • Organic farming (pesticides minimized, soil health)
  • Urban agriculture (resource efficient)
  • Community-supported agriculture (CSA) (direct connections between consumers and farmers)

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