Within bronfenbrennerâs ecological-systems approach, he called the historical context that affects other systems the ) ecosystemb) chronosystemc) mesosystemd) macrosystem

b. chronosystem

Explanation:

Chronosystem -

Urie Bronfenbrenner in the year 1979 , developed the most famous ecological systems theory , which helps to explain the external factors which determines the growth and development of a child.

The chronosystem consists of all the environmental event that occur in the development age of the child , is referred to as chronosystem.

hence, from the question , the correct term from the given options is chronosystem.

nasa 3

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations. click to let others know, how is it