C is the correct anwser because it proves how we are very dependent on chemicals.
I think yes.....coz i am also living on equator....
Naturalists of Steno’s day were becoming convinced that matter was composed of different combinations of tiny “corpuscles”—what today we would call molecules. Steno argued that the corpuscles in the teeth were replaced bit by bit, by corpuscles of minerals. In this gradual process, the teeth didn’t lose their overall shape as they turned from tissue to stone.
C is the answer to question 22
