Describe the energy conversion involved in the formation of coal.

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?

Need what is special about water as a compound? how does water regulate climate? what drives water evaporation?   why is the water vapor fresh water when it rises from the ocean? why might freshwater in the form of snow take longer to enter the water cycle again than liquid precipitation?   what is an aquifer? what role do people play in the water cycle? plz just answer as many as you can ! thx if you !