Physical weathering is an entirely different process compared to chemical weathering. how can these two processes work together to speed up the weathering process.

While physical weathering breaks down rocks without altering their composition, chemical weathering alters the chemicals that compose the rocks. Depending on the chemicals involved, the rock might disintegrate entirely, or might simply become softer and more vulnerable to other forms of weathering.

i would say the answer is food.

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.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue