Question 1 An astronaut way out in space is considered to be "weightless" This is because-
his mass is so small relative to the earth that gravity doesn't affect him.
gravitational force decreases greatly over long distances,
gravitational force pushes objects away from each other at long distances.
objects far away from the earth have less mass.

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 !