What process that brings heat from the lower mantle toward the crust?(1 point)
Responses
compression
compression
convection
convection
conduction
conduction
cementation
convection
Plate Tectonics and the Rock Cycle Quick Check
3 of 43 of 4 Items
Question
Which boundary interaction is responsible for forming mountains on continental plates?(1 point)
Responses
divergent plate boundary interaction
divergent plate boundary interaction
transverse plate boundary interaction
transverse plate boundary interaction
convergent plate boundary interaction
convergent plate boundary interaction
convective plate boundary interaction
convergent plate boundary interaction
Which model closely resembles the thickness of the crust relative to the rest of the earth?(1 point)
Responses
The crust is like the yogurt around a yogurt-covered raisin.
The crust is like the yogurt around a yogurt-covered raisin.
The crust is like the peel of a grapefruit.
The crust is like the peel of a grapefruit.
The crust is like the shell on a hard-boiled egg.
The crust is like the shell on a hard-boiled egg.
The crust is like caramel around a caramel apple.
The crust is like the shell on a hard-boiled egg.
The correct answer is convection. Convection is the process that brings heat from the lower mantle towards the crust. To understand why, let's break down the other options:
1. Compression: This refers to the process of applying pressure to a material, usually resulting in a decrease in volume. While compression can contribute to changes in heat and pressure within the Earth's interior, it is not the primary process responsible for bringing heat from the lower mantle to the crust.
2. Conduction: This is the transfer of heat energy through a material by direct contact and molecular interactions. Conduction can occur within the Earth's interior, but it is not the primary process responsible for transferring heat from the lower mantle to the crust.
3. Cementation: This is a process that occurs in sedimentary rocks where particles are glued together by minerals precipitating in the pore spaces. However, cementation is not relevant to the transfer of heat from the lower mantle to the crust.
Convection, on the other hand, is the process where heat is transferred through a fluid (such as molten rock or magma) due to density differences. In the Earth's interior, heat is transferred through convection currents. As the hot mantle material rises towards the crust, it transfers heat to the surrounding rocks. These convective movements are mainly responsible for bringing heat from the lower mantle towards the crust.