Answer:
growth rate will be 4.5 %
So option A is correct option
Explanation:
We have given immigration = 50
Emigration = 20
Birth rate = 25
Death rate = 10
Each per 1000 people
We have to find the percentage growth rate of this country
Percentage growth is given by immigration - emigration + birth rate - death rate
So percentage growth rate = %
So growth rate will be 4.5 %
So option A is correct option
Physical erosion and chemical erosion
I'm not sure its correct the two might be considered the same
The answer is mudflow because of the addition of water to liquify the materials