<span>As with igneous and sedimentary rocks, metamorphic rocks are classified on the basis of texture (grain size, shape, orientation) and mineral composition. However, the classifiction of metamorphic rocks is more difficult to get into than with igneousand sedimentary rocks, for a couple of reasons.</span>Oct 25, 2000
330 million, 500 million, 20K meters squated, dont get the last 2.
It is false because there is vampire applinces you can unplug, you can switch to different energy sources, and recycle. It is false.
Algae and plants lived in shallow seas millions years ago .After dying and sinking to the seafloor, the organic material mixed with other sediments and was buried .Over millions of years under high pressure and high temperature, the remains of these organisms transformed into what we know today as fossil fuels. Coal, natural gas, and petroleum are all fossil fuels that formed under similar conditions.
hope it helps
