Answer:
Because the high pressure areas are associated with cold air masses which push away out of polar regions during the winter when there is less sun to warm neighbouring regions.
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.
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