Why is this the answer?

The answer is blue because this clever riddle is actually asking you to name a color that you can see everywhere in the world around you. It is a puzzle that uses beautiful objects from nature and even a famous special gemstone as its clues. Let us be detectives and check each part of the riddle to solve the mystery. The first clue says, "I am seen in the water." Imagine standing on the shore and looking at the vast ocean or a deep swimming pool. Even though a cup of water looks clear, large amounts of water usually look like a bright, wonderful shade of blue. This happens because of how the light from the sun reflects off the water's surface, painting it blue for our eyes to see. The next line tells us, "If seen in the sky." This is a fantastic clue because on a sunny day, the atmosphere above us is a brilliant, clear blue. It is one of the first things you notice when you wake up in the morning. The riddle continues by saying, "I am in the rainbow." You already know that rainbows are magical arcs of light that show all the different colors mixed up in sunshine. The color blue is a major part of the rainbow's pattern, tucked right in the middle of the spectrum. Finally, the riddle gives two special examples of the color. It mentions "a jay's feather." A blue jay is a gorgeous bird that is instantly recognizable by the bright, striking blue color on its head and wings. The last special clue is "lapis lazuli." This is a complicated name for a very special type of rock, or gemstone, that is mined from the earth. For thousands of years, people have loved this stone because it is a deep, rich color. It is one of the most famous examples of the color blue you can find in nature, and people often use it to make beautiful jewelry. Since the ocean, the sky, the rainbow, a blue jay’s feathers, and this precious stone all share this one important color, the only perfect answer is blue.