Answer:
A network of cities served by a particular airline
Explanation:
Answer:
Fold mountains are formed when two plates run into each other or collide
Explanation:
Answer:
A. Evolution
Explanation:
Human resources is the set of the people who make up the workforce of an organization, business sector, industry, or economy.
Birth is directly proportional to the human resources .
Death is inversely proportional to the human resources and same as Emigration.