Sea floor spreading adds more crust to the ocean floor and at the same time older strips of rock move outward from either side of the ridge.
Brussels is the capital of Belgium, and Belgium is a country in North-Western continental Europe (only "north" if you don't take into account the Scandinavian Peninsula). It's located between Germany and France.
Within Belgium, Brussels is located in the middle of the country.
Siberia is extremely chilly in comparison with substantial land Russia, it has outstanding organic materials and oil. The southern coast of Siberia (South East) have excellent sort of wood for paper. For this reason most valuable to Russia and the republics because of expansion of industries and trade that has led to greater exploitation of the natural resources
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I think your answer is B.) The objects must be in direct contact with one another