The tide will disappear. Therefore, the closer an object is to the moon, the more attractive it is, and the farther it is from the moon, the less attractive it is. The influence of lunar gravity on the earth can be summarized into three parts: the earth itself, the ocean near the moon and the ocean far from the moon. Therefore, the ocean closest to the moon will rise slightly under the action of extra gravity, so the water in one horizon pushes against the water in another horizon, forming a wonderful tidal phenomenon. So when the moon disappears, the tide disappears.
The off-track moon will also affect the movement of the earth around its axis. At present, the gravity of the moon increases the length of a day by about two milliseconds every century. If the moon disappears, the rotation of the earth will be more stable. However, if the moon disappeared billions of years ago, our rotation today would be very different. A long time ago, the earth only had a rotation period of four hours, and the moon slowly and continuously slowed the earth down to 24 hours as we know it now.
The moon makes the tilt angle of the earth axis of 23.5 degrees quite stable. If there is no stable axis of the moon, the earth will be more unstable, thus affecting the season and climate of the earth. In either case, the earth's axis will tilt so that both poles will be exposed to the sun, melting their ice sheets and leading to extreme climate change. In fact, as long as the inclination of our planet axis changes once, it will be enough to lead to an ice age. In fact, the moon is slowly getting farther and farther away from the earth. The earth itself is accelerating the moon, and the earth is slowing down, transforming its rotational energy into the orbital energy of the moon, and making the moon slowly move away from the earth.