These images of the santa cruz river in arizona were taken in 1942 and 1989. during the period between these years, the growth of vegetation declined substantially in the area. what are the two most likely explanations for this change in vegetation

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