Loudspeakers for Coral Reefs
#. Loudspeakers for Coral Reefs The coral reef is a kind of underwater community. It is made up of sea animals called corals. They look like a plants. The coral reef is also full of unique fish. In a healthy reef, fish and corals make many sounds. So, it is actually very noisy there. Unfortunately, some coral reefs don't have enough fish. So, some Australian scientists did something interesting...
Cake : toddler/왕초보 영어뉴스
2020. 6. 22. 16:39
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