Describe how the state of matter will affect the usefulness of materials used in a stepping stone

b

is correct hope this   also i learnd this in middle school

the answer is c.) there is a warm front in region a and a stationary front in region b.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.