Question: Why Are Convection Currents Important To Plate Tectonics?

Why is convection current important?

Convection currents play a role in the circulation of fluids.

Convection currents are the result of differential heating.

Lighter (less dense), warm material rises while heavier (more dense) cool material sinks.

Convection also plays a role in the movement of deep ocean waters and contributes to oceanic currents..

How do convection currents affect weather?

During convection, cooler water or air sinks, and warmer water or air rises. This movement causes currents. … These currents move water all around the earth, bringing warm water to cooler areas and vice versa. This redistributes thermal energy and causes changes in the weather.

How does convection transfer heat energy?

Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection. Liquids and gases expand when they are heated. … As a result, the particles take up more volume.

How do convection currents work in the earth?

Convection currents in the air and sea lead to weather. Magma in the Earth’s mantle moves in convection currents. The hot core heats the material above it, causing it to rise toward the crust, where it cools. … The magma can’t continue to rise, so it moves horizontally and sinks back down.

How fast do convection currents in the mantle move?

The convection currents in the much hotter mantle continually move the plates about 1/2 to 4 inches per year.

What are 5 facts about the mantle?

Planet EarthThe Mantle is the second layer of the Earth. … The mantle is divided into two sections. … The average temperature of the mantle is 3000° Celsius. … The mantle is composed of silicates of iron and magnesium, sulphides and oxides of silicon and magnesium.The mantle is about 2900 km thick.More items…

How is energy used with convection currents?

Convection is the transfer of thermal energy by particles moving through a fluid. … Moving particles transfer thermal energy through a fluid by forming convection currents. Convection currents move thermal energy through many fluids, including molten rock inside Earth, water in the oceans, and air in the atmosphere.

What does density have to do with convection currents and plate tectonics?

Convection occurs through the movement of particles. As particles become heated, the molecules move faster and faster, and as molecules move apart, density decreases. The warmer, less dense material rises compared to the surrounding cooler, higher density material.

Where do convection currents occur?

Answer and Explanation: Convection currents on Earth occur in the mantle of the Earth. It is causes by the rise of hot magma towards the Earth’s crust, becoming cooler, and…

How fast do tectonic plates move?

They move at a rate of one to two inches (three to five centimeters) per year.

What do you mean by convection currents?

A convection current is a process which involves the movement of energy from one place to another. Convection currents tend to move a fluid or gas particles from one place to another. These are created as a result of the differences occurring within the densities and temperature of a specific gas or a fluid.

How convection takes place in the mantle?

The mantle is heated from below (the core), and in areas that are hotter it rises upwards (it is buoyant), whereas in areas that are cooler it sink down. This results in convection cells in the mantle, and produces horizontal motion of mantle material close to the Earth surface.

Why are convection currents in the mantle important?

Mantle convection describes the movement of the mantle as it transfers heat from the white-hot core to the brittle lithosphere. … Convection currents also transfer denser, cooler material from the crust to Earth’s interior through the process of subduction.

What would happen if convection currents stopped?

Answer 1: If all convection currents on Earth stopped that would be a natural disaster. The amount of heat which the sun radiates at us sets the temperature of the Earth’s surface. … So if convection completely stopped the high and low temperatures would force people and animals to move away from the poles and equator.