7 facts about the Earth that many of us have not yet updated

Everything changes over time, and so does Earth. The knowledge we thought was true before, so many have "expired".

Over thousands of years, we still cannot understand all about the Green planet. The simple reason is because over time, everything changes. What we thought was true in the past, is not right now.

1. Thank you! The hole in the ozone layer is closed

About 20 years ago, humans were really worried about the ozone layer appearing huge holes - especially in the Antarctic region.

But it seems that the worry is currently excessive. A 2015 study showed that compared to 2000, the ozone layer has shrunk by more than 4 million square kilometers, and that number continues to increase.

The reason is also due to the joint efforts of environmentalists who have helped governments in the world to be aware of the harms of ozone-depleting chemicals - such as CFC (substances in the chillers of the 20th century). By limiting CFC-containing products, the ozone layer is gradually recovering.

2. −90 ° C is the coldest temperature ever recorded on Earth

The temperature was recorded on July 23, 1983, at the Antarctic Vostok meteorological station.

3. There is an island that owns a reservoir . soap

It is the Greek island of Kimolos , 53 km ² wide. A special feature of this island is that when it rains, the ground will be covered by . soap bubbles.

The reason is because Kimolos' soil contains soapy clay - a type of natural soap used by indigenous people instead of regular soap.

4. The earth has melted without this

These are tectonic plates - a total of 7 arrays. Between these areas there is a process of carbon rotation, and that is why the Earth is not melted even though the core contains extremely hot lava.

5. The Amazon Forest and another river are bigger than the Amazon River

The river is called Hamza . The reason you have not heard of this name is because it is an underground river, located 4,000m from the ground.

The river is nearly 6000km long, 400km wide, but flows at a very slow speed.

6. Antarctica has lost 3 trillion tons of ice in the last 25 years

Research in 2017 shows that Antarctica has lost 3 trillion tons of ice during the last 25 years. In 2017 alone, an ice sheet in Antarctica broke, and it alone weighed 1 trillion tons.

7. What happens when the world has no water?

Just 2 words: Disaster! Plants cannot grow, everything dies, and people have no place to live.