Answer Wiki. Sand sharks a/k/a sand tiger, grey nurse and ragged tooth. Their name reportedly comes from their habit of hanging out near the shoreline, trolling the ocean floor where the waves break close to the beach. While they're considered relatively docile and mind their own business, they apparently will attack a human if provoked.
Contemporary energy transitions differ in terms of motivation and objectives, drivers and governance. In a more narrow sense, a sustainable energy transition is the shift by some countries, most notably Germany (German: Energiewende), to decentralised renewable energy, and energy efficiency.
The two hydrogen atoms can share their electrons, thus each hydrogen atom will have a full valence shell. But this explanation is only a way to intuitively understand why H2 is more stable than 2H. The truth is that any stable molecule will have a lower energy than the sum of its individual atoms.