What is the wavelength of electromagnetic radiation with a frequency of 5.00 x 10^12 Hz? What kind of electromagnetic radiation is this?

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.

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 !