Young Minds Coaching Center

  Introduction  An allergy is a chronic condition where the immune system reacts abnormally to a substance, called an allergen, that is typically safe for most people. Instead of ignoring the harmless substance, the immune system launches a defense, producing special antibodies and releasing chemicals like histamine. These chemicals cause a variety of symptoms, ranging from mild annoyances like sneezing and itchy eyes to a severe, life-threatening reaction known as anaphylaxis. Allergies are incredibly common, affecting millions of people worldwide. We encounter allergens everywhere: in the foods we eat, the air we breathe, the medicines we take, and the insects around us. An allergen is a substance that is otherwise harmless to most people but causes an exaggerated, abnormal immune response (an allergic reaction) in a susceptible person. When an allergic individual encounters an allergen, their immune system mistakenly identifies the substance as a threat. It then produces a ...

Definition of Preposition A preposition is a word that is placed before a noun or pronoun to show its relation with another word in the sentence. A preposition is like a linking word that connects a noun or pronoun with the rest of the sentence, showing relationships of place, time, direction, cause, manner, possession, etc. Example: The book is on the table. (on shows the relation between book and table) She is fond of music. (of shows the relation between fond and music) Explanation of Preposition A preposition is a word that comes before a noun or pronoun and shows its relationship with other words in the sentence. It answers questions like: Where? (place/position) When? (time) Which way? (direction/movement) Why/How? (cause, reason, manner, etc.) Examples and Explanation 1. Prepositions of Place (Where?) Show the location of something. Examples: The cat is under the table. The book is on the shelf. She lives in Delhi. ✔ Here, under, on, in tell us the position of objects. 2. Prepos...