Define the terms Fact, Hypothesis, Theory, and Law.

Fact: a thing that is known or proved to be true.

Hypothesis: a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

Theory:a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.

Law: a statement of fact, deduced from observation, to the effect that a particular natural or scientific phenomenon always occurs if certain conditions are present.

Explanation:

Note: these are not my words, credits to google search.

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.