If a boat is made of mostly non-metallic materlswhat is needed in order to help larger vessels see the boat on their radar screens?

To help larger vessels detect a boat made mostly of non-metallic materials on their radar screens, the boat should be equipped with a radar reflector. This device enhances radar visibility by reflecting radar signals back towards the source, making the boat more easily detectable. Additionally, using an active radar system, like an AIS (Automatic Identification System), can further improve visibility by broadcasting the boat's location to nearby vessels.