How does the composition of the lithosphere and asthenosphere differ?
The rigid lithosphere is made up of the crust and uppermost mantle. The base of the lithosphere varies in depth but lies approximately 100 km below Earth’s surface. Rocks in the uppermost mantle that lie within the asthenosphere are partially molten. What are the sources of energy for external and internal earth processes? External processes are driven by energy from the Sun; internal process are driven by heat energy from radioactive decay of elements within Earth’s interior. Name the three processes by which heat energy is transferred to the earth or within Earth. Radiation transfers heat from the Sun to the earth through the vacuum of space and the gases of Earth’s atmosphere. Heat is transferred from Earth’s interior to the surface by conduction (the movement of heat through a solid body) and convection (upwelling of magma). What is the difference between the terrestrial and Jovian planets? Earth is one of the terrestrial planets (with Mercury, Mars, and Venus) that are solid and c
