The best cause is erosion creating waves and pushing forward the line where the sand starts
This process is called cultural diffusion. When diffusion takes place, a cultural item (a cultural idea or a cultural practice) disseminates from its place of origin or creation to other places. An example of this practice is the way Americans have embraced Chinese or Mexican food, mostly as a result of the migration of people from those countries into the United States.
Answer:
1. Co-variance= -1.2
2. correlation coefficient= -0.4404
3. There is weak negative relationship between x and y.
Explanation:
1.
Co-variance= Cov(x,y)= sum[(x-xbar)(y-ybar)]/n
xbar=sumx/n=32/5=6.4
ybar=sumy/n=35/5=7
x 7 8 5 3 9
x-xbar 0.6 1.6 -1.4 -3.4 2.6
y 7 5 9 7 7
y-ybar 0 -2 2 0 0
(x-xbar)(y-ybar) 0 -3.2 -2.8 0 0
Cov(x,y)= sum[(x-xbar)(y-ybar)]/n=-6/5=-1.2
Cov(x,y)=-1.2
2.
correlation coefficient=r

x 7 8 5 3 9
x-xbar 0.6 1.6 -1.4 -3.4 2.6
y 7 5 9 7 7
y-ybar 0 -2 2 0 0
(x-xbar)(y-ybar) 0 -3.2 -2.8 0 0
(x-xbar)² 0.36 2.56 1.96 11.56 6.76
(y-ybar)² 0 4 4 0 0

r=-0.4404
3. Since the value of correlation coefficient is negative and less than 0.5 , so, we can say that there is weak negative relationship between x and y.
Answer:
what separates guiana highland and Brazilian highland
<em>➢</em><em> </em><em>Guiana Highlands, plateau and low-mountain region of South America located north of the Amazon and south of the Orinoco River. ... They are geologically similar to the Brazilian Highlands, from which they are separated by the eastern part of the Amazon lowland.</em>
Explanation:
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The Indian practices and beliefs that Father Jean Brebeuf admires their marriage customs, the fact that natives didn't marry their relatives and had only one wife. Another reason he admired is the belief of Natives to the corporeal, which means no mentions for rewards or punishments. On the other side, there are some beliefs that he criticizes most, the fact that they did not pray or believe in the same God. They were also very lazy when it came to performing the certain task.