On a fishing trip, Ed realizes that he has mistakenly packed the sewing box instead of the tackle box. He wants to fish but returns home because he does not have any line or hooks. Ed's failure to realize that sewing thread can be used as fishing line and that a bent needle can be used as a hook is an example of .

The answer is functional fixedness.

Explanation:

Functional fixedness refers to the inability to use an object in a different way than usual. For example, if a person is looking for a pair of scissors to cut paper, he might not realise he can also use a utility knife or even a ruler.

Studies have shown that very young children do not present functional fixednesss. Instead, it appears around age seven, when children learn to use objects "properly".

jupiter is mainly composed of hydrogen and helium just like a star. spectral analysis of jupiter has revealed that in addition to hydrogen and helium, the planet is made of water, methane and ammonia. those elements are in trace amounts. the core of the planet is thought to contain some rock and metallic hydrogen. i hope this will give you the answer to your question! : d