Answer: the answer is B
Explanation: Archaeologists do most of their work in relation to investigating and analyzing humans from the past through the examination of their remains. Therefore, Archaeologists can be described as B) unearthing physical materials from human settlements. Through this process they are able to better understand how humans lived at certain periods in history and how humans have developed over time.
Answer:
C: decreased tourism
Explanation:
If the river is polluted it don't exactly mean that diseases increase but, one thing for sure is that tourism will decrease.
Technology
division of labor
political organization
<span>commerce and trade</span>
Thomas Edison invented the light bulb. (B)