Why is this the answer?

The answer is ship because this is a very clever riddle that uses fun, sneaky clues to describe a big boat sailing on the water. It uses everyday words to talk about all the important parts of a ship that help it travel across the huge, deep ocean. Let us look at the first clue, "Weight in my belly." A ship needs to carry heavy things, like cargo or supplies for a long trip. The largest, lowest, and most important part of the ship is its body, which is called the hull. The inside of the hull acts like the ship's stomach, or "belly." This is where sailors carefully load up all the heavy goods. Sometimes they also put in special weights, called ballast, to keep the ship balanced and stable against the big ocean waves. All this weight in its "belly" is essential for a safe and successful journey. Next, the riddle gives us a wonderful picture with the line, "Trees on my back." This might make you imagine a floating forest, but it is actually a great way to describe the tall, upright poles on the ship's deck. These poles are called masts. In the past, and even on some sailboats today, the masts are made from the strong, thick wood of large trees. The masts stand up straight, like tall trees, and the ship uses them to hold up the sails that catch the wind. So, the ship carries its wooden "trees" right on its back to help it move. The third part says, "I travel fast in my place." A ship's "place" is the water, whether it is a river, lake, or the wide-open ocean. The ship is specially designed to move very quickly over this surface. It does not stay in one spot; it moves to carry people and goods all around the world. It can glide fast, cutting through the waves. Finally, the riddle ends with "but feet is a feature I lack." This is the last and most important clue. A ship travels everywhere and can move fast, but it does not have any legs or feet like an animal or a person. It travels by floating, powered by wind or an engine, never needing to walk. This clever puzzle makes a common object sound like a magnificent, mysterious, living creature of the sea.