How do chemicals affect our lives?
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a. chemicals have made many things easier.
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b. chemicals have made it possible for us to own less.
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c. chemicals make our daily lives more dangerous.
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d. chemicals have made our lives much harder.

Human exposure to hazardous chemicals can occur at the source or the chemical could move to a place where people can come into contact with it. Chemicals can move through air, soil, and water. They can also be on plants or animals, and can get into the air we breathe, the food we eat and the water we drink.

Explanation:

answer; i believe the correct answer is (solid gold);

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.