Answer:
http://unsdsn.org/resources/publications/world-happiness-report-2013/
Explanation:
click the link the study was from a canda school
Follow the Pythagorean theorem which is

So fill in what we know which is a and b to get

then solve the squares to get
36+64=

add the two numbers to get
100=

then square root each side to get
10=c
Hope I could help, and I am really good at the <span>Pythagorean theorem so if you need more help just let me know.</span>
The answer is going to be d. felsic. hope that helped
Answer:
Ethnic conflict is common in Sub-Saharan Africa mainly because colonizers established political borders without considering cultural divisions, and most countries have diverse ethnic groups. As a result, the people of Sub-Saharan Africa are generally most local to their cultural group.
Explanation: