Answer:
D. She knows that the lye she uses to make soap can also confirm whether the rock is gold.
Explanation:
In the text she says that if the rock is gold, it would not be harmed by the lye. This affects the plot because now they know that there will be a truthful possibility whether they found gold or not.
Answer:
21. D
23.C( not so sure about this one)
Explanation:
The simple machine that is a shovel is a lever
Answer:
C.how to tell whether the test was accurate
Explanation:
This is because, after the test, Safiya's brother should be able to check if the test carried out was accurate and not wrong as directed.
This could be done through series of validation technique rather than assuming that the test carried out was correct.
