Football is the most popular sport in the world. It involves playing with a spherical ball between two teams of 11 players. There are about 250 million people who play this sport in more than 200 countries. It is one…
Day: November 27, 2021
What Are Birds?
The bird is a warm-blooded vertebrate, with a four-chambered heart and lightweight skeleton. They are the only creatures in the animal kingdom that lay hard-shelled eggs and are distinguished by their feathers. As part of the Aves class, birds are…