Answer:
In Spanish, "ser" is a verb that is used to describe characteristics, origin, and identity. Here are the five main uses of "ser":
To indicate identity: "Soy Sara" (I am Sara).
To indicate profession or occupation: "Ella es doctora" (She is a doctor).
To indicate characteristics: "El gato es negro" (The cat is black).
To indicate origin: "Él es de España" (He is from Spain).
To indicate time and date: "Hoy es lunes" (Today is Monday).