which of the following was not a source of heat that caused the early earth to melt is?
Geothermal
Geothermal energy...heat.
No. Geothermal energy uses heat from inside the Earth, which is a combination of heat left over form Earth's formation and heat from the decay of radioactive isotopes within the Earth.
Geothermal energy comes from the earth, meaning getting heat from magma within the earth, whereas fossil fueled power plants burn fossil fuels, like oil turned into gas.
The heat comes from magma that is deep inside the earth, sedimentery rock is heated and squashed into metamorphic rock.
Heat rising from within the Earth causes the Earth's tectonic plates to move. The constant rising and sinking of heat are called convection currents.
Earth gets heat and light from the Sun. It's heat also comes from the Earth's core.
The plates of the earth's crust move as a result of huge convection currents within the mantle of the earth. These convection currents are caused by areas of different temperatures deep beneath the earth. The heat within the earth comes from radioactive decay and leftover heat from the earth's formation.
Energy from the earth's heat is called geothermal.
No, thats chemical energy. Geothermal would be using heat that comes from within the earth itself.
which of the following was not a source of heat that caused the early earth to melt is?
heat from within the earth
Geothermal
from steam produced by earth
The most important source of heat from within the earth comes from the decay of radioactive isotopes, such as those of Uranium, Thorium and Potassium. It contributes approximately 75-90% of all heat that reaches the surface. The second source of heat is secular cooling. This "primordial" heat was formed in the early history of Earth by accretion and differentiation, and in fact, is still being generated by the gravitational partitioning of iron in the core. It accounts for ~10-15% of heat that reaches the surface.
Geothermal energy...heat.