Human geography of Singapore?

As of June 2009, Singapore's total population*** was 4,987,600, up 3.1% from a year earlier; of these, 3.73 million were citizens and permanent residents, while 1.25 million were non-residents. Citizens of Singapore are categorized by major ethnic groups: Chinese 2.72 million (74.7%), Malays 490,000 (13.6%), Indians 320,000 (8.9%), and the rest are of other races. With more than 4,000 people per square kilometer, it is one of the most densely populated countries in the world. The Chinese in Singapore basically originate from China's Fujian, Guangdong and Hainan, with most of them being Fujianese, followed by Putian, Chaoshan, Guangfu, Hakka and Hainanese. Located in Southeast Asia, it is a tropical urban island nation at the southernmost tip of Peninsular Malaysia. Area of 693 square kilometers, north of the Straits of Johor and Malaysia as a neighbor, there is a long embankment and Malaysia's Johor Bahru, south of the Straits of Singapore and Indonesia. Located in the Pacific Ocean and the Indian Ocean shipping channel - the entrance and exit of the Straits of Malacca, consisting of more than 50 islands, Singapore Island accounted for 91.6% of the country's area. The terrain is low and flat, with an average elevation of 15 meters above sea level and a maximum elevation of 163 meters above sea level, and a coastline of 193 kilometers. The rate of water area: 1.444%. Tropical rainforest climate, perennial high temperature and rain, the average annual temperature of 24 ~ 27 ℃. The average annual precipitation is 2,345 millimeters and the average annual humidity is 84.3%. Singapore's economy has traditionally been dominated by commerce, including entrepot trade, processing and export, shipping, etc. It is the largest seaport in Southeast Asia, an important commercial city and entrepot trade center, as well as an international financial center and an important aviation center. The economic development of post-independence Singapore has attracted attention and is known as one of the Four Little Dragons of Asia. Tourism is one of the pillars of Singapore's economy (the three economic pillars: international trade, processing industry, and tourism).

After independence, the government adhered to a liberal economic policy, vigorously attracting foreign investment and developing a diversified economy. Since the early 1980s, it has accelerated the development of new capital-intensive, high value-added industries, invested heavily in infrastructure development, and sought to attract foreign investment with the most favorable business environment. With manufacturing and services as the twin engines of economic growth, the industrial structure has been continuously upgraded, and in the 1990s, particular emphasis has been placed on the information industry, with investment being made in the construction of the "Singapore Integrated Network" across the island. In order to further promote economic growth, the country is vigorously pursuing a "regionalized economic development strategy", accelerating overseas investment, and actively engaging in economic activities abroad. The economy is dominated by five major sectors: commerce, manufacturing, construction, finance, and transportation and communications. Industry consists mainly of manufacturing and construction. Manufacturing products mainly include electronics, chemicals and chemical products, machinery and equipment, transportation equipment, petroleum products, oil refining, and other sectors. It is the third largest oil refining center in the world. Agriculture accounts for less than 1% of the national economy, mainly poultry raising and aquaculture. All food is imported, and only 5% of vegetables are homegrown, most of which are imported from Malaysia, China, Indonesia and Australia. The service sector is the leading industry for economic growth. It includes retail and wholesale trade, hotel and tourism, transportation and telecommunication, financial services, and business services. Tourism is one of the main sources of foreign exchange earnings.