Podcast
Questions and Answers
Which sphere of the Earth is the only one considered biotic?
Which sphere of the Earth is the only one considered biotic?
- Geosphere
- Biosphere (correct)
- Hydrosphere
- Atmosphere
What does the Greek prefix 'geo-' mean?
What does the Greek prefix 'geo-' mean?
- Water
- Earth (correct)
- Life
- Vapor
Which sphere of the Earth is composed of solid land in Earth's crust?
Which sphere of the Earth is composed of solid land in Earth's crust?
- Geosphere (correct)
- Biosphere
- Atmosphere
- Hydrosphere
What does the word 'atmosphere' originate from?
What does the word 'atmosphere' originate from?
How does water vapor connect the hydrosphere and atmosphere?
How does water vapor connect the hydrosphere and atmosphere?
Which sphere is affected when humans cut down trees for industrialization?
Which sphere is affected when humans cut down trees for industrialization?
What is the main contributor to humidity on a muggy day?
What is the main contributor to humidity on a muggy day?
How does rainfall connect the hydrosphere and biosphere?
How does rainfall connect the hydrosphere and biosphere?
What is the most abundant gas in Earth's atmosphere?
What is the most abundant gas in Earth's atmosphere?
Which layer of the atmosphere is responsible for blocking ultraviolet radiation?
Which layer of the atmosphere is responsible for blocking ultraviolet radiation?
Where do most organisms live within the biosphere?
Where do most organisms live within the biosphere?
Which layer of the geosphere is composed of liquid iron and nickel?
Which layer of the geosphere is composed of liquid iron and nickel?
What is the temperature of the inner core of Earth's geosphere?
What is the temperature of the inner core of Earth's geosphere?
Where is the maximum temperature recorded within Earth's crust?
Where is the maximum temperature recorded within Earth's crust?
How much of the water on Earth is present in oceans?
How much of the water on Earth is present in oceans?
What is the composition of the atmosphere's oxygen, as mentioned in the text?
What is the composition of the atmosphere's oxygen, as mentioned in the text?
Which layer of the atmosphere accounts for nearly 15 kilometers above Earth's surface?
Which layer of the atmosphere accounts for nearly 15 kilometers above Earth's surface?
Where can some organisms be found within the biosphere?
Where can some organisms be found within the biosphere?
Which layer of the geosphere is the hottest, according to the text?
Which layer of the geosphere is the hottest, according to the text?
What is the most abundant form of water found in the hydrosphere?
What is the most abundant form of water found in the hydrosphere?
What distinguishes the biosphere from the other three spheres of the Earth?
What distinguishes the biosphere from the other three spheres of the Earth?
Which sphere of the Earth is primarily abiotic in nature?
Which sphere of the Earth is primarily abiotic in nature?
What makes up the geosphere according to the text?
What makes up the geosphere according to the text?
Which sphere of the Earth is located as far as 10,000 kilometers above Earth's surface?
Which sphere of the Earth is located as far as 10,000 kilometers above Earth's surface?
What Greek prefix is associated with the word 'hydrosphere'?
What Greek prefix is associated with the word 'hydrosphere'?
How does water vapor in the atmosphere connect the hydrosphere and atmosphere?
How does water vapor in the atmosphere connect the hydrosphere and atmosphere?
In what form does water exist in the hydrosphere mainly?
In what form does water exist in the hydrosphere mainly?
How do humans affect Earth's geosphere negatively?
How do humans affect Earth's geosphere negatively?
Which sphere does rainfall connect to the biosphere?
Which sphere does rainfall connect to the biosphere?
What is responsible for the humidity on a muggy day?
What is responsible for the humidity on a muggy day?
Study Notes
Spheres of the Earth
- The biosphere is the only biotic sphere of the Earth.
- The Greek prefix 'geo-' means earth or ground.
Geosphere
- The geosphere is composed of solid land in Earth's crust.
- The inner core of the geosphere has a temperature of around 5,000°C to 6,000°C (9,000°F to 11,000°F).
- The hottest layer of the geosphere is the core.
- The layer of the geosphere composed of liquid iron and nickel is the outer core.
- The geosphere is made up of the crust, mantle, outer core, and inner core.
- Human activities such as deforestation negatively affect the geosphere.
Atmosphere
- The word 'atmosphere' originates from the Greek words 'atmos' meaning vapor and 'sphaira' meaning sphere.
- The most abundant gas in the Earth's atmosphere is nitrogen.
- Oxygen makes up around 21% of the atmosphere.
- The stratosphere is responsible for blocking ultraviolet radiation.
- The troposphere accounts for nearly 15 kilometers above Earth's surface.
- Water vapor in the atmosphere connects the hydrosphere and atmosphere.
- The atmosphere is responsible for humidity on a muggy day.
Hydrosphere
- The majority of the water on Earth (around 97%) is present in oceans.
- Water exists mainly in the liquid form in the hydrosphere.
- The hydrosphere is connected to the atmosphere through water vapor.
Biosphere
- The biosphere is the sphere of the Earth where most organisms live, including oceans, land, and atmosphere.
- Rainfall connects the hydrosphere and biosphere.
- Some organisms can be found in the atmosphere, ice, and water within the biosphere.
- The biosphere is distinguished from the other three spheres in that it is the only one that supports life.
- The lithosphere is primarily abiotic in nature.
Interconnections
- Water vapor in the atmosphere connects the hydrosphere and atmosphere.
- Rainfall connects the hydrosphere and biosphere.
- The biosphere is affected when humans cut down trees for industrialization.
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Description
Learn about the four interconnected spheres of the Earth - Atmosphere, Biosphere, Geosphere, and Hydrosphere. Understand how air, living things, land, and water are categorized into these different spheres and how they interact with each other.
