The 4 Spheres of the Earth

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30 Questions

Which sphere of the Earth is the only one considered biotic?

Biosphere

What does the Greek prefix 'geo-' mean?

Earth

Which sphere of the Earth is composed of solid land in Earth's crust?

Geosphere

What does the word 'atmosphere' originate from?

'Vapor'

How does water vapor connect the hydrosphere and atmosphere?

By being present in the upper atmosphere

Which sphere is affected when humans cut down trees for industrialization?

Biosphere

What is the main contributor to humidity on a muggy day?

Water vapor

How does rainfall connect the hydrosphere and biosphere?

By accumulating in bodies of water

What is the most abundant gas in Earth's atmosphere?

Nitrogen

Which layer of the atmosphere is responsible for blocking ultraviolet radiation?

Stratosphere

Where do most organisms live within the biosphere?

At the surface of the Earth

Which layer of the geosphere is composed of liquid iron and nickel?

Outer core

What is the temperature of the inner core of Earth's geosphere?

$6,000$ degrees celsius

Where is the maximum temperature recorded within Earth's crust?

$871$ degrees celsius

How much of the water on Earth is present in oceans?

>97.5%

What is the composition of the atmosphere's oxygen, as mentioned in the text?

21%

Which layer of the atmosphere accounts for nearly 15 kilometers above Earth's surface?

Troposphere

Where can some organisms be found within the biosphere?

All of the above

Which layer of the geosphere is the hottest, according to the text?

Inner core

What is the most abundant form of water found in the hydrosphere?

Oceans

What distinguishes the biosphere from the other three spheres of the Earth?

It contains living organisms.

Which sphere of the Earth is primarily abiotic in nature?

Geosphere

What makes up the geosphere according to the text?

All solid land in Earth's crust

Which sphere of the Earth is located as far as 10,000 kilometers above Earth's surface?

Atmosphere

What Greek prefix is associated with the word 'hydrosphere'?

Hydro-

How does water vapor in the atmosphere connect the hydrosphere and atmosphere?

By contributing to rainfall that connects the two spheres

In what form does water exist in the hydrosphere mainly?

Liquid form in rivers and oceans

How do humans affect Earth's geosphere negatively?

By cutting down trees for industrialization

Which sphere does rainfall connect to the biosphere?

Hydrosphere

What is responsible for the humidity on a muggy day?

Gaseous water vapor in the atmosphere

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.

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