Silicon is a chemical element with symbol Si and atomic number 14. A hard and brittle crystalline solid with a bluegray metallic luster, it is a tetravalent metalloid.
Bundeslander Germany. Bundeslander Germany
Larch Mountain salamander; Magellanic penguin; Maned wolf; Narwhal; Margay; Montane solitary eagle; Endangered species Conservation Status
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Tu scendi dalle stelle. Il vero canto di Natale del Sud:
Do it yourself (DIY) is the method of building, modifying, or repairing things without the direct aid of experts or professionals. Academic research describes DIY as
Sustainable Energy bioenergy concentrated solar power efficient energy use energy transition
Nervous system The nervous system is the part of an animal's body that coordinates its actions and transmits signals to and from different parts of its body.
Lab Techniques Lab Techniques
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Theories of gravitation
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Armoured fighting vehicle