When we look at a map of the world, we see a bunch of lines going up and down and left and right. These lines are called latitude and longitude, and they help us know where places are on the Earth. The 110th meridian east is one of these lines of longitude.
Imagine you're holding a big ball - that's like the Earth. Now imagine there's a line going from the very top of the ball all the way down to the bottom. That line is called the prime meridian, and it helps divide the Earth into two halves - the eastern hemisphere and the western hemisphere.
But just having one line isn't enough to find exact places on the Earth. That's why we have lots of other lines of longitude, like the 110th meridian east. It's a line that goes from the top of the Earth to the bottom, and it's to the east of the prime meridian.
If you look at a map and follow the 110th meridian east, you'll see that it passes through lots of different countries like China, North Korea, South Korea, Russia, and Australia. It helps people who are looking for directions or trying to find their way to different places know exactly where they are and what direction they need to go.
So, the 110th meridian east is an important line on a map that helps us find different places on Earth. It's a bit like a guide that helps us know where we are and where we need to go.