The presence of a mountain range could isolate the gene pool of the species which would likely change or mutate characteristics may arise in the species. <span />
Answer:
if you don't know how am I supposed to know
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
Answer:
Areas or regions with low sea level or at sea level are called lowlands.
Lowlands are formed by deposition of lava through water, wind, or soil erosion and it has been said that such plains are more fertile for farming as compared to other high sea-level plains.
At Lowlands, people get opportunities for employment and the economy of the nation can be boosted.
For example, Lowlands of Scotland.
Farmers growing paddy or rice are getting the main benefits of Lowlands.
Lowlands have a suitable environment for many agricultural products.
Farmers can develop dairy farms and mountain farms.
