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There are three main sources of heat in the deep earth: (1) heat from when the planet formed and accreted which has not yet been lost (2) frictional heating caused by denser core material sinking to the center of the planet and (3) heat from the decay of radioactive elements.
Contents
- 1 What is convection What effect does it have on a Earth’s atmosphere and b Earth’s interior?
- 2 Which method of heat transfer is the most important to bringing heat to the earth’s surface?
- 3 How convection in Earth’s interior and conduction in the surface affect the temperature in the atmosphere?
- 4 Why is convection more important than conduction in the troposphere?
- 5 What is the major source of Earth’s heat?
- 6 What is an example of convection?
- 7 What is convection in the Earth’s mantle?
- 8 How does the process of convection in the Earth’s mantle affect the formation of mountains and the temperature in the surface?
- 9 What causes convective?
What is convection What effect does it have on a Earth’s atmosphere and b Earth’s interior?
Convection is the process by which heat is moved from one place to another by the upwelling or downwelling of a fluid such as air or water. Convection occurs in the troposphere the lowest region of Earth’s atmosphere. It is the cause of surface winds and weather.
Which method of heat transfer is the most important to bringing heat to the earth’s surface?
Heat from the Earth’s core and radiation from the Sun is transferred to the surface of the Earth by conduction. Contact of the atmosphere with these warm surfaces transfers thermal energy which then heats up the rest of the air through convection.
How convection in Earth’s interior and conduction in the surface affect the temperature in the atmosphere?
Explanation: Conduction radiation and convection carry heat from the Earth’s surface to the atmosphere. … During the day sunlight heats the soil which then heats the air directly above it by conduction. At night the ground cools and heat is transferred from the warmer air above to the cooler ground.
Why is convection more important than conduction in the troposphere?
Why is convection more important than conduction in the troposphere? The air doesn’t conduct heat well so only the first few meters of the troposphere are heated with conduction from the sun’s radiation heat. Therefore most of the heat in the troposphere comes from the convection currents.
What is the major source of Earth’s heat?
radioactive decayThe flow of heat from Earth’s interior to the surface is estimated at 47±2 terawatts (TW) and comes from two main sources in roughly equal amounts: the radiogenic heat produced by the radioactive decay of isotopes in the mantle and crust and the primordial heat left over from the formation of Earth.
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What is an example of convection?
A simple example of convection currents is warm air rising toward the ceiling or attic of a house. Warm air is less dense than cool air so it rises. Wind is an example of a convection current. Sunlight or reflected light radiates heat setting up a temperature difference that causes the air to move.
What is convection in the Earth’s mantle?
Mantle convection describes the movement of the mantle as it transfers heat from the white-hot core to the brittle lithosphere. The mantle is heated from below cooled from above and its overall temperature decreases over long periods of time. All these elements contribute to mantle convection.
How does the process of convection in the Earth’s mantle affect the formation of mountains and the temperature in the surface?
As tectonic plates slowly move away from each other heat from the mantle’s convection currents makes the crust more plastic and less dense. The less-dense material rises often forming a mountain or elevated area of the seafloor.
What causes convective?
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