What information did the scientists miss in 1948 and 1966 that caused them to believe that the caps contained water ice?

What is the name of this hydrocarbon?

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this