(1) An image which has been turned upside down, with ...
A map showing just enough geographic information to permit ...
GOOS, co-sponsored by IOC/UNESCO, WMO, UNEP and ICSU, is a ...
A geological phenomenon where rocks move without human or ...
The Great Blue Hole is a large underwater sinkhole off the ...
A tornado is a violently rotating column of air that is in ...
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