In ancient times when man had not quite got round to inventing the wristwatch, the most reliable source of telling the time was the sun, moon, and stars. There seems to be several opinions of who came up with the moon planting calendar first.
of our earth is covered with water. The ocean is a beautiful place and many creatures live in it. We must keep water clean because it is very very useful and helps us a lot and with a lot of things we do such as drinking, washing, bathing, and many more.