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Question: Hi Becky. I'm Edward, I'm 6 y.o and I do Science at the Romanian School. I want to ask why do volcanoes have a hole in the middle? Why do volcanoes explode and why after explosion there is smoke? And why does smoke goes everywhere? Why are volcanoes mountains? I know they are mountains but I don't know why. Thank you very much.
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edward6 commented on :
Thank you Becky, I learn so much from you.