When shanna chews a stick of gum, she always offer a piece to miriam. whenever miriam has chips in her lunch, she shares them with shanna. in fact, the two girls are always sharing with one another. what aspect of a relationship does this represent?

a)common interests

b)reciprocity

c)trust

d)attraction

What is the best way to use the clean water act to address the issue of dirty water and diseases that plague asmall community? a) to report the number of cases of people who havecholera symptomsb) to provide health guidelines about effects from waterborne diseases c) to enforce standards that focus on chemical dischargeinto bodies of waterd) to carry out research that investigates how dirty wateraffects human health