Hey kiddo, have you ever heard of a green ensign? It's like a special flag that some countries use to represent their ships when they go out to sea.
See, when a ship leaves port and goes into international waters, it's not just representing itself, but also the country it comes from. So, to show which country the ship belongs to, they fly a special flag called an ensign.
Now, a green ensign is a type of flag that is specifically used by countries that have something called a Merchant Navy. This is basically a group of ships that are used for commercial purposes, like carrying goods and people.
The green color on the ensign actually represents something called a "house flag". This is another type of flag that is used by Merchant Navy companies to show which company owns a ship. The green ensign then shows that the ship is part of the Merchant Navy of a certain country, but it also has a specific owner within that country.
So there you have it, a green ensign is a special flag that shows which country a ship belongs to, as well as the specific company that owns it. Cool, right?