Developmental psychologists have found that children can benefit from involvement in some form of before they enroll in formal schooling, which takes place at age 5 or 6 in the u. s.

explanation:

i believe the primary and secondary sectors

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