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Answer variants:
confused when you do not understand something
stretched to an extent as far as possible
the scientific study of universe which includes stars, planets and their objects
taking risk on something, hoping to bring good result
a mass of rock that revolves around in space
1. outstretched \(=\)
 
2. puzzled \(=\)
 
3. astronomy \(=\)
 
4. asteroid \(=\)
 
5. stake \(=\)