Which of these is an example of how engineers have affected society? a. our general understanding of how cancer cells grow and spreadb. the use of piers and beams to build a strong foundation for a housec. our general understanding of the reaction process involved in galvanic corrosion d. medical professionals' advanced understanding of pharmaceuticals

B.The use of piers and beams to build a strong foundation for a house

Explanation:

Foundation engineering falls under geotechnical engineering which uses both soil and rock mechanics to design the foundation structure of any building so as to avoid overloading of the soil. Foundation engineering is important to ensure stability and prevent lateral movement of the building.

Cancer research is done by cell biologist. Medical professionals help to cure sick people. Chemists study galvanic corrosion.

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answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error