Lead.
"Due to insufficient water treatment, lead leached from water pipes into the drinking water, exposing over 100,000 residents to elevated lead levels."
It is important for anthropologists to have studying
material culture because the objects that are being created and are being
shaped by human beings are for them, has meaning behind it and has practices in
which involves with the cultures.
Student 1’s methods would be more accurate, because the student would control more factors. Only one variable at a time (either temperature or acidity) would be tested on each group of worms. On the other hand, Student 2 is testing both factors on all the worms, which could make the results unclear.
Answer:
approximately 860 light-years (260 pc) from Earth
