Answer:
This has happened for two main reasons: A global shift in manufacturing to new emerging economies (NEEs), where wages are lower, working hours are longer and trade unions are sometimes banned. An increase in the number of machines used to carry out work.
Explanation:
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1) Lowlands area especially level ones are good for human habitation, hence population and settlements Sheldon concentrated here.
2) Coastal lowlands are sources of mineral deposits such as crude oil.
3) Lowlands favour agriculture
4) lowlands favour construction of communication network such as roads, railways, airports, etc.
The answer to the question is the total surface area increases and chemical composition changes. Consider the breakdown of rock into smaller pieces, these fragments vary from huge rocks to smaller sizes. As they are so crushed and broken they tend to occupy much of the surface area than when its just a huge rock.
