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.
Answer:
What are the options?
Explanation:
Some changes can include:
-climate change
-ozone level increases
- deforestation
- soil affection
- water availability
A The thrust (Bird) helps him remembers the riddle and he is able to view the sercret keyhole
B), The speaker is angry for death being the reason for distance between he and his friend!
