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Flashcards on Earth's Structure and Composition
Click on the flashcard to see the answer
What are the three main layers of the Earth?
The three main layers of the Earth are the crust, the mantle, and the core.
Which layer of the Earth is the thinnest?
The crust is the thinnest layer of the Earth.
What is the composition of the Earth's crust?
The Earth's crust is composed mainly of solid rocks and minerals.
What is the state of matter of the mantle?
The mantle is in a semi-solid state.
What elements make up the Earth's core?
The Earth's core is primarily composed of iron and nickel.
What is the temperature at the Earth's core?
The temperature at the Earth's core can reach up to 5700 degrees Celsius.
What is the asthenosphere?
The asthenosphere is a semi-fluid layer beneath the Earth's lithosphere.
What is the lithosphere?
The lithosphere is the rigid outer layer of the Earth, including the crust and a portion of the upper mantle.
What is the hydrosphere?
The hydrosphere refers to all the Earth's water, including oceans, lakes, rivers, groundwater, and atmospheric water vapor.
What gases make up the Earth's atmosphere?
The Earth's atmosphere is primarily composed of nitrogen (78%) and oxygen (21%).
What is the biosphere?
The biosphere refers to all the living organisms on Earth and their interactions with the environment.
What is the tectonic plate theory?
The tectonic plate theory states that the Earth's lithosphere is divided into several large plates that move and interact with each other.
What are the types of tectonic plate boundaries?
The types of tectonic plate boundaries include divergent, convergent, and transform boundaries.
What are examples of landforms created by tectonic plate movements?
Examples of landforms created by tectonic plate movements include mountains, volcanoes, and valleys.
What is the Moho discontinuity?
The Moho discontinuity is the boundary between the Earth's crust and the underlying mantle.
What is the geothermal gradient?
The geothermal gradient is the rate of increase in temperature with depth in the Earth's interior.
What are the three main layers of the Earth?
The three main layers of the Earth are the crust, the mantle, and the core.
Which layer of the Earth is the thinnest?
The crust is the thinnest layer of the Earth.
What is the composition of the Earth's crust?
The Earth's crust is composed mainly of solid rocks and minerals.
What is the state of matter of the mantle?
The mantle is in a semi-solid state.
What elements make up the Earth's core?
The Earth's core is primarily composed of iron and nickel.
What is the temperature at the Earth's core?
The temperature at the Earth's core can reach up to 5700 degrees Celsius.
What is the asthenosphere?
The asthenosphere is a semi-fluid layer beneath the Earth's lithosphere.
What is the lithosphere?
The lithosphere is the rigid outer layer of the Earth, including the crust and a portion of the upper mantle.
What is the hydrosphere?
The hydrosphere refers to all the Earth's water, including oceans, lakes, rivers, groundwater, and atmospheric water vapor.
What gases make up the Earth's atmosphere?
The Earth's atmosphere is primarily composed of nitrogen (78%) and oxygen (21%).
What is the biosphere?
The biosphere refers to all the living organisms on Earth and their interactions with the environment.
What is the tectonic plate theory?
The tectonic plate theory states that the Earth's lithosphere is divided into several large plates that move and interact with each other.
What are the types of tectonic plate boundaries?
The types of tectonic plate boundaries include divergent, convergent, and transform boundaries.
What are examples of landforms created by tectonic plate movements?
Examples of landforms created by tectonic plate movements include mountains, volcanoes, and valleys.
What is the Moho discontinuity?
The Moho discontinuity is the boundary between the Earth's crust and the underlying mantle.
What is the geothermal gradient?
The geothermal gradient is the rate of increase in temperature with depth in the Earth's interior.
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