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Questions and Answers
Which of the following spheres of the environment is responsible for providing habitat for living organisms?
Which of the following spheres of the environment is responsible for providing habitat for living organisms?
Which of these is NOT a characteristic of the lithosphere?
Which of these is NOT a characteristic of the lithosphere?
What is the primary source of energy and nutrients for plant growth?
What is the primary source of energy and nutrients for plant growth?
What is the main role of autotrophs in the interdependence of biotic and abiotic components of the environment?
What is the main role of autotrophs in the interdependence of biotic and abiotic components of the environment?
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Which of the following statements accurately describes the relationship between the atmosphere and the biosphere?
Which of the following statements accurately describes the relationship between the atmosphere and the biosphere?
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How does the hydrosphere contribute to the lithosphere?
How does the hydrosphere contribute to the lithosphere?
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The statement "The outermost layer of the land mass is made up of loose rock materials like gravel, sand, and soil." best describes which sphere of the environment?
The statement "The outermost layer of the land mass is made up of loose rock materials like gravel, sand, and soil." best describes which sphere of the environment?
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Which of the following is an accurate representation of the percentage of the Earth's surface covered by the hydrosphere?
Which of the following is an accurate representation of the percentage of the Earth's surface covered by the hydrosphere?
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What is the average rate of change in temperature with altitude?
What is the average rate of change in temperature with altitude?
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Which of these conditions is NOT associated with Sirocco winds?
Which of these conditions is NOT associated with Sirocco winds?
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Which type of wind is known as Chinook in North America and Fohn in Europe?
Which type of wind is known as Chinook in North America and Fohn in Europe?
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Which type of local wind is characterized by a calm and rainless center with the lowest pressure?
Which type of local wind is characterized by a calm and rainless center with the lowest pressure?
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What are Isobars?
What are Isobars?
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Which type of cloud is associated with a halo around the sun or moon?
Which type of cloud is associated with a halo around the sun or moon?
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Which of the following is a factor that influences pressure?
Which of the following is a factor that influences pressure?
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What is the main characteristic of a cyclone?
What is the main characteristic of a cyclone?
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Which type of cloud is formed when air rises and cools, leading to the formation of water droplets?
Which type of cloud is formed when air rises and cools, leading to the formation of water droplets?
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What is the name given to the lines that connect places with equal cloud cover?
What is the name given to the lines that connect places with equal cloud cover?
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Which of the following winds is known for its strong, dry, cold, and dusty nature?
Which of the following winds is known for its strong, dry, cold, and dusty nature?
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Which type of wind is associated with the Mediterranean region of North Africa during the winter?
Which type of wind is associated with the Mediterranean region of North Africa during the winter?
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Which of these is NOT a type of high cloud?
Which of these is NOT a type of high cloud?
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Which of the following is NOT a factor influencing wind?
Which of the following is NOT a factor influencing wind?
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What is the name given to the low pressure belt located near the equator?
What is the name given to the low pressure belt located near the equator?
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Which type of wind is associated with the eastern slope of the Rocky Mountains?
Which type of wind is associated with the eastern slope of the Rocky Mountains?
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Which type of cloud is characterized by great vertical extent and is often associated with thunderstorms?
Which type of cloud is characterized by great vertical extent and is often associated with thunderstorms?
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Which of the following is NOT a criticism of the Greek classification of climate?
Which of the following is NOT a criticism of the Greek classification of climate?
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What is the primary basis for Koppen's classification of climate?
What is the primary basis for Koppen's classification of climate?
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Which of the following climate types is characterized by a lack of a dry season?
Which of the following climate types is characterized by a lack of a dry season?
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Which of the following is a disadvantage of Koppen's classification system?
Which of the following is a disadvantage of Koppen's classification system?
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Which type of cloud is known as a 'rain cloud' due to its association with continuous precipitation?
Which type of cloud is known as a 'rain cloud' due to its association with continuous precipitation?
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What is the significance of 'Isohels' in the context of sunshine?
What is the significance of 'Isohels' in the context of sunshine?
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Which of the following is a notable difference between the Greek and Koppen's classifications?
Which of the following is a notable difference between the Greek and Koppen's classifications?
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What is an advantage of Koppen's classification system?
What is an advantage of Koppen's classification system?
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Which of the following is a true statement about the 'C-type' climate in Koppen’s classification?
Which of the following is a true statement about the 'C-type' climate in Koppen’s classification?
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Which component of the ecosystem is responsible for the decomposition of dead organic matter, releasing nutrients for producers?
Which component of the ecosystem is responsible for the decomposition of dead organic matter, releasing nutrients for producers?
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Which of the following is NOT a natural intervention in the environment?
Which of the following is NOT a natural intervention in the environment?
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What is the primary role of autotrophs in an ecosystem?
What is the primary role of autotrophs in an ecosystem?
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In the food chain 'Grass - Grasshopper - Toad - Snake - Hawk', which trophic level does the snake occupy?
In the food chain 'Grass - Grasshopper - Toad - Snake - Hawk', which trophic level does the snake occupy?
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Which of the following is NOT a characteristic of the biosphere?
Which of the following is NOT a characteristic of the biosphere?
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What is the primary difference between weather and climate?
What is the primary difference between weather and climate?
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Which of the following is an example of interdependence within the biotic component of an ecosystem?
Which of the following is an example of interdependence within the biotic component of an ecosystem?
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Which of the following processes is NOT a major driver of environmental balance?
Which of the following processes is NOT a major driver of environmental balance?
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What is the primary function of the food web in an ecosystem?
What is the primary function of the food web in an ecosystem?
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Which of the following is NOT an example of a human intervention in the environment?
Which of the following is NOT an example of a human intervention in the environment?
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Which of the following is a component of the abiotic component of an ecosystem?
Which of the following is a component of the abiotic component of an ecosystem?
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What is the significance of the interdependence between the biotic and abiotic components of an ecosystem?
What is the significance of the interdependence between the biotic and abiotic components of an ecosystem?
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What is the primary role of decomposers in nutrient cycling?
What is the primary role of decomposers in nutrient cycling?
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Which of the following is an example of a human intervention that directly affects the carbon cycle?
Which of the following is an example of a human intervention that directly affects the carbon cycle?
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How does altitude affect temperature?
How does altitude affect temperature?
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Which type of rainfall is characterized by heavy winds, lightning, and thunder?
Which type of rainfall is characterized by heavy winds, lightning, and thunder?
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What is the instrument used to measure the speed of wind?
What is the instrument used to measure the speed of wind?
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What is the primary factor causing orographic rainfall?
What is the primary factor causing orographic rainfall?
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Which of these factors would most likely contribute to the formation of a coastal desert?
Which of these factors would most likely contribute to the formation of a coastal desert?
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What is the instrument used to measure relative humidity?
What is the instrument used to measure relative humidity?
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Which of these describes the term "Continentally"?
Which of these describes the term "Continentally"?
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What is the primary cause of cyclonic rainfall?
What is the primary cause of cyclonic rainfall?
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What is a rain shadow?
What is a rain shadow?
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What is the primary reason for the high daytime temperatures in the equatorial region?
What is the primary reason for the high daytime temperatures in the equatorial region?
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What is the instrument used to measure atmospheric pressure?
What is the instrument used to measure atmospheric pressure?
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What is the principle behind a thermometer?
What is the principle behind a thermometer?
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Which of these is NOT a form of precipitation?
Which of these is NOT a form of precipitation?
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What is the purpose of a Stevenson Screen?
What is the purpose of a Stevenson Screen?
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How does cloud cover affect temperature?
How does cloud cover affect temperature?
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What are isohyets used for?
What are isohyets used for?
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Flashcards
Environment
Environment
The total surrounding or medium of any organism, including physical surroundings and climatic factors.
Lithosphere
Lithosphere
The solid portion of the environment, including rocks, soil, and minerals.
Hydrosphere
Hydrosphere
The liquid portion of the environment, encompassing all water on Earth.
Atmosphere
Atmosphere
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Biosphere
Biosphere
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Interdependence
Interdependence
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Water cycle
Water cycle
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Photosynthesis
Photosynthesis
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Abiotic component
Abiotic component
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Biotic component
Biotic component
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Autotrophs
Autotrophs
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Heterotrophs
Heterotrophs
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Decomposers
Decomposers
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Ecosystem
Ecosystem
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Trophic level
Trophic level
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Food chain
Food chain
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Food web
Food web
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Environmental balance
Environmental balance
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Hydrological cycle
Hydrological cycle
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Carbon cycle
Carbon cycle
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Natural interventions
Natural interventions
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Human interventions
Human interventions
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Weather
Weather
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Climate
Climate
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Temperature
Temperature
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Rainfall
Rainfall
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Latitude
Latitude
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Altitude
Altitude
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Wind
Wind
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Barometer
Barometer
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Hygrometer
Hygrometer
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Convectional Rainfall
Convectional Rainfall
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Orographic Rainfall
Orographic Rainfall
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Cyclonic Rainfall
Cyclonic Rainfall
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Relative Humidity
Relative Humidity
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Cloud Cover
Cloud Cover
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Isoyets
Isoyets
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Strato-Cumulus
Strato-Cumulus
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Nimbostratus
Nimbostratus
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Cumulonimbus
Cumulonimbus
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Isohel
Isohel
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Koppen Classification
Koppen Classification
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Torrid Zone
Torrid Zone
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Frigid Zone
Frigid Zone
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Koppen's Sub-groups
Koppen's Sub-groups
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Advantages of Koppen's Classification
Advantages of Koppen's Classification
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Criticism of Greek Classification
Criticism of Greek Classification
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Isotherms
Isotherms
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Lapse rate
Lapse rate
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Temperature inversion
Temperature inversion
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Fohn wind
Fohn wind
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Sirocco
Sirocco
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Mistral
Mistral
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Typhoon
Typhoon
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Hurricanes
Hurricanes
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Tornado
Tornado
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Isonephs
Isonephs
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Pressure belts
Pressure belts
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Study Notes
Environmental Concepts
- Environment encompasses the total surroundings of an organism, including the physical environment, climate, and other living beings.
- Earth's environment is divided into four interconnected spheres: lithosphere, hydrosphere, atmosphere, and biosphere.
Spheres of the Environment
- Lithosphere: The solid part, containing rocks, sand, soil, and minerals. Comprises about 30% of the Earth's surface, forming landmasses ranging from 10 to 50 km thick. The top layer is loose materials like gravel and soil.
- Hydrosphere: The liquid portion, including lakes, oceans, rivers, ice, and water vapor. Covers approximately 70% of the Earth's surface; 97% is ocean water.
- Atmosphere: The gaseous layer surrounding Earth, containing oxygen, nitrogen, carbon dioxide, and other gases. Over 99% is within 30 km of the surface. Its density decreases with altitude.
- Biosphere: The zone where life exists on Earth's surface and in the lithosphere. Has a thin layer of a few kilometers, including plants, animals, and microorganisms.
Interdependence
- The spheres interact and rely on each other. For example, water, carbon dioxide, and nitrogen cycles nourish plants.
- Organisms rely on one another for sustenance and resources.
- Respiration and photosynthesis maintain oxygen and carbon dioxide levels.
Ecosystem Components
- An ecosystem is a community of organisms interacting with their physical environment, including plants, animals, and abiotic factors.
- Ecosystem components:
- Abiotic: Non-living factors – soil, water, gases, sunlight.
- Biotic: Living organisms, grouped as:
- Autotrophs (Producers): Green plants that make food through photosynthesis.
- Heterotrophs (Consumers): Organisms relying on other organisms for food – primary (herbivores), secondary (carnivores), and tertiary (higher-level carnivores).
- Decomposers: Microorganisms that decompose dead organic matter, releasing nutrients.
Interdependence within Ecosystem Components
- Abiotic factors rely on natural processes: weather, rock weathering, water cycle
- Biotic factors are interconnected: Plants provide food; decomposition creates nutrients for plant growth; respiration provides carbon dioxide for photosynthesis; and photosynthesis provides oxygen plants use.
Environmental Balance
- Environmental balance depends on matter recycling and energy flow in an ecosystem.
- Achieved through: hydrological cycle, carbon cycle, mineral nutrient cycle, nitrogen cycle, food chains, and food webs.
Food Chains and Food Webs
- Food Chain: A series of organisms, where each feeds on the one before.
- Trophic Levels: Feeding stages in a food chain (e.g., producer, primary consumer, secondary consumer).
- Food Web: A network of interconnected food chains showing energy transfer.
Environmental Interventions
- Natural: Processes that alter the ecosystem (e.g., droughts, volcanic activity, sea level change).
- Human: Activities that impact the environment (e.g., deforestation, pollution, urbanization).
Weather and Climate
- Weather: Short-term atmospheric conditions (e.g., sunny, rainy, cloudy).
- Climate: Long-term average weather patterns.
- Elements: Temperature, rainfall, wind, pressure, humidity, cloud cover, sunshine.
Factors affecting Weather and Climate
- Latitude: Higher latitudes are cooler.
- Altitude: Higher altitudes are cooler.
- Distance from the sea: Coastal areas have more moderate temperatures.
- Ocean currents: Cold currents cool coasts; warm currents warm coasts.
- Planetary winds and pressure belts: Affect temperature and precipitation.
- Slope and aspect: Slope influences temperature.
- Cloud cover: Affects temperature and solar radiation.
- Vegetation and soil: Impacts temperature and heat absorption.
Measuring Weather Data
- Instruments: Rain gauge, thermometer (in Stevenson Screen), wind vane, anemometer, barometer, hygrometer.
Types of Rainfall
- Convectional: Caused by intense heating, leading to rapid cloud formation and heavy rain.
- Orographic (Relief): Forced uplift of moist air over mountains, leading to rainfall on the windward side.
- Cyclonic (Frontal): Caused by the meeting of different air masses, leading to precipitation.
Temperature Variation
- Isotherms: Lines on maps connecting areas with the same temperature.
- Lapse rate: Rate of temperature decrease with altitude.
- Temperature inversion: Rate of temperature increase with altitude.
Wind
- Factors affecting wind: Earth's rotation, temperature differences, pressure differences.
- Types of wind: Föhn, Sirocco, Mistral, typhoons, hurricanes, tornadoes, Harmattan.
Pressure
- Isobars: Lines on maps joining points with equal atmospheric pressure.
- Pressure belts: Equatorial low, subtropical high, temperate low, polar high.
Clouds
- Cloud types: High (Cirrus, Cirrocumulus, Cirrostratus), Middle (Altocumulus, Altostratus), Low (Stratocumulus, Stratus, Nimbostratus), Clouds with great vertical extent (Cumulus, Cumulonimbus).
Sunshine Measurement
- Measures the amount of solar radiation.
Climatic Classification Systems
- Greek: Based on temperature (Torrid, Temperate, Frigid). Criticized for simplicity and lack of other elements.
- Köppen: Based on temperature and precipitation, identifying different vegetation types. More sophisticated, quantitative, and useful.
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Description
Explore the fundamental concepts of the environment and the four interconnected spheres: lithosphere, hydrosphere, atmosphere, and biosphere. This quiz will test your knowledge of how these spheres interact and their significance on Earth.