Why did the early crust on earth sink into the interior of our planet? it was mineral rich. it was more dense. it was less dense. it had more dissolved gas.

answer; analytical,creative and practical;

chronological thinking is an indispensable tool to structure a historical narrative and to give meaning to a sequence of events. the final section presents the results of a survey to test the chronological thinking of lower secondary school students carried out by the educational research institute.