The students made the following hypothesis: "As you move outwards from a tree there will be more plant growth."
Explain why the students thought their hypothesis would be correct.

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.

answer denitrification;