1. The National Dolphin Day is being celebrated on which date? A.April 11B.April 12C.April 14D.April 13
Explanation: National Dolphin Day is being celebrated on April 14 so that we can all pay tribute to this amazing mammal.Mammals are a group of vertebrate animals constituting the class Mammalia, characterized by the presence of mammary glands which in females produce milk for feeding their young, a neocortex, fur or hair, and three middle ear bones
