If the Moon were to suddenly disappear, it would have several significant effects on Earth:

1. Tides Would Change Dramatically

• The Moon’s gravity is the main driver of Earth’s tides. Without it, ocean tides would be much weaker—only influenced by the Sun.

• Coastal ecosystems that rely on tidal patterns would be severely disrupted.

2. Earth’s Axis Would Wobble More

• The Moon stabilizes Earth’s axial tilt. Without it, Earth’s tilt could vary wildly over time.

• This would lead to chaotic climate changes—severe ice ages or intense warming periods over millennia.

3. Nights Would Be Darker

• The Moon reflects sunlight and brightens the night sky. Without it, nights would be much darker, affecting nocturnal animals and human activities.

4. Biological Impact

• Many animals use the Moon for navigation and mating cycles. A sudden disappearance could disrupt natural rhythms and behavior in wildlife.

5. Slower Rotation Over Time

• The Moon's gravitational pull is gradually slowing Earth's rotation. Without it, Earth would spin faster over time—shortening the length of days (though this would be gradual).

6. Cultural and Psychological Impact

• The Moon has a profound place in human culture, art, and timekeeping. Its loss would be deeply symbolic and unsettling for humanity.

While life wouldn't end, the ecological, environmental, and climatic shifts would be profound and long-lasting.