The discovery of magnetic lines of force generated by came after 1845. Current flow is defined as the movement of in a conductor

the movement of electrons in Earth’s molten liquid iron outer core generates a current flow which in turn produces Earth’s of force.

HELP PLEASE PARENT TEACHER CONFERENCES ARE TMR

When a rock is mechanically weathered, the surface area of the rock is increased, which allows a greater amount of chemical weathering to occur. the surface area of the rock is increased, which hinders chemical weathering. the volume of the rock is decreased, which hinders chemical weathering. the volume of the rock is increased, which allows a greater amount of chemical weathering to occur. the surface area of the rock is decreased, which allows a greater amount of chemical weathering to occur