Modern Physics describes four fundamental interactions naming: Strong Nuclear Interaction, Weak Nuclear Interaction, Electromagnetic Interaction and Gravitational Interaction. Among other three fundamental interactions, the three major questions about gravity remained open;

Why the gravity is extremely weak? Hierarchy Problem

Why the gravity is always attractive force? Even anti matter is attracted to itself and to the matter.

Gravity is not unified with other interactions by successful theory like Chromodynamics or Weak Theory.

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