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sea floor spreading
Great blooms of oceanic algae, or phytoplankton, take carbon out of the atmosphere during photosynthesis. It is then taken deep into ocean with them when they die. Scientists say that this helped cool the earth during the ice ages by removing carbon dioxide from the atmosphere and storing it at the ocean floor, where it cannot be recycled back into the atmosphere.
Lingual frenum
The crust contains the ocean floor and also the continents on Earth.
Lingual frenum
The Continental Shelf ; see related link below .
The ocean ridge.
It is the continental shelf.
Most of the rocks of the earth's crust are igneous, although sedimentary rocks usually cover them. Basalt is the most common type of igneous rock and it covers the ocean floor and thus, exists over two-thirds of the earth's surface!
Pits could be made indoors with a cushion and carpet floor or the earth pit which has no floor and the pit is made of earth and dirt.
Combustion.
Yes, they do. Just this week (January 18, 2010) a meteor crashed through the roof of a doctor's office in Virginia and landed on the floor of the examining room. Granted, MOST meteors burn up in the atmosphere and don't survive the passage. But some do.