Answer:
The answer is A.
Explanation:
To test if the selenium from the mine has an effect on the fish living in the lake which i assume is close to the mine, testing the tissue of the fish from that lake and comparing it to the selenium levels of the fish from a nearby lake would be a testable hypothesis because there is a comparable aspect and there should be a difference in the numbers between the fish from the two lakes because of their distance to the mine.
I hope this answer helps.
I am pretty sure it is D. confucius lived during the Zhou dynasty and from what i have read the dynasty sounds pretty peaceful
Explain why some lobsters may have one claw that is larger than the other claw. ... Why might it be particularly beneficial for the giant spider crab to be so large<span>?</span>
