Answer:
A regional problem exists when there are marked disparities in the standard of living enjoyed by people in different regions of a country. In the United Kingdom the most commonly identified manifestation of the regional problem is the level of unemployment in an area.
Answer:
Combustion engine
Explanation:
The combustion engine were some of the most significant and very far technologies of the Industrial Revolution. This was first presented in 1878 and was propelled by gas and air, making it unsuitable for large public use. During the Industrial Era, the combustion engine was perhaps the most efficient, both in the early years and even in the long run.
Answer:
Mecca
He lived the next 15 years as a merchant, and his wife gave birth to six children: two sons, who died in childhood, and four daughters. From time to time, Muhammad spent nights in a cave in Mount Hira north of Mecca, ruminating on the social ills of the city.
Explanation: