We call Earth the “Blue Planet” because the ocean covers about 71 percent of it! The world has five oceans: the Antarctic Ocean, the Pacific Ocean, the Arctic Ocean, the Indian Ocean and the Atlantic Ocean. The Pacific is the biggest — it’s bigger than all the land in the world put together. The Atlantic is smaller than the Pacific, but bigger than the Indian. The Antarctic is a little bigger than the Arctic Ocean, which is the smallest and frozen for a lot of the year. But scientists think that soon much of the ice will disappear because of climate change.
____▲____ Without oceans, humans, animals and plants couldn’t live. Oceans contain about 97 percent of all the water on Earth. Thanks to the water cycle, oceans give us rainwater and drinking water. At least half the oxygen we breathe comes from plants in the ocean. A lot of the food we eat comes from the ocean, and much of our energy comes from the ocean — both oil and gas are found under the sea. Today we can make electricity from waves and tides without pollution. Most of the goods that we use are transported on ships by sea, and boats are a way for people to travel. The coast is also a place for people to live and to have fun. Many people like to spend their free time and holidays at the beach!
However, oceans are being polluted. There are billions and billions of pieces of plastic in our oceans. There are five huge patches (块) of plastic in the oceans around the world. One patch in particular, known as the “Great Pacific Garbage Patch”, measures 1.6 million square kilometres — that’s about seven times the size of the UK! Plastic in oceans is killing fish, birds, turtles and other sea creatures. It’s also dangerous for our health, because fish eat the tiny pieces of plastic and then humans eat the fish.
There’s lots that we can do, on World Oceans Day and on every day of the year!
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