Positioned in northern Asia, Russia is in both the northern and eastern hemispheres. The country is dissected by the Arctic Circle, and also separated into two recognized landmasses by the Ural Mountains; its land west of those mountains is referred to as European Russia, and includes the capital city of Moscow.
Lunar eclipses<span> occur in pairs with solar </span>eclipses<span>, two weeks apart. This is because the Earth, sun and moon must be aligned for an </span>eclipse<span> to occur, and the alignment can only happen twice during the moon's month-long orbit. A lunar </span>eclipse<span> lasts for hours as the moon slowly orbits through the Earth's shadow.</span>
Mountain building, weathering, and erosion eventually expose the fossil at the surface. Sedimentary rock is the type of rock that is made of hardened sediment. Most fossils form from animals or plants that once lived in or near quiet water such as swamps, lakes, or shallow seas where sediments build up.
