Khi đốt cháy 1 lít xăng, cần 1950 lít oxygen và sinh ra 1248 lít khí carbon dioxide. Một ô tô khi chạy một quãng đường dài 100 km tiêu thụ hết 7 lit xăng. Biết oxygen chiếm 1/5 thể tích không khí. Để ô tô chạy được quãng đường dài 200 km,cần dùng bao nhiêu lít không khí và sinh ra bao nhiêu lít khí carbon dioxide?

      ( help me , please  / giải cả bài hộ mình nhá )

Terrain: relatively flat, mainly low-lying plains and coastal plains. The northwest region of the province concentrates a few low hills such as Bao Dai, Ngo Xa (also known as Thuong Son, Mai Son - Y Yen), Coi Son (also known as Goi mountain), Non Coi, Ho Son, etc. Kim Bang is now Kim Thai, Trang Nghiem means Ngam mountain (Vu Ban). At the foot of the mountain, there are often small rivers flowing around creating a charming scene. Non Coi - Vi river are the landscapes representing Nam Dinh that many people in the country know about. Nam Dinh has a 72 km long coastline from Ba Lat estuary to Day estuary, some places have smooth sandy beaches suitable for the development of beach resort tourism.

Climate: Nam Dinh has all the climate characteristics of the tropical monsoon region, which is hot and humid with a lot of rain. Average temperature: 23o–24oC. Average humidity: 80–85%. Total sunny days: 250 days. Total sunshine hours: 1650–1700 hours. Average rainfall: 1750–1800 mm. The rainy season is from May to October, the rainy season is from November to February next year. Average wind speed: 2–2.3 m/s. On the other hand, because it is located in the Gulf of Tonkin, every year Nam Dinh is often affected by storms or tropical depressions, with an average of 4–6 storms/year (from July to October).

 Hydrology: Nam Dinh is located between the lower reaches of two large rivers of the Northern Delta, the Red River and the Day River. The Red River flows into Nam Dinh from My Trung commune, My Loc district through Nam Dinh city and the districts of Nam Truc, Truc Ninh, Xuan Truong and Giao Thuy, and then flows into the East Sea at Ba Lat estuary, forming the natural boundary in the west. northeast between Nam Dinh and Thai Binh province. Day River flows into Nam Dinh territory from Yen Phuong commune, Y Yen district through Nghia Hung district and then empties into the sea at Day estuary, becoming the natural boundary between Nam Dinh and Ninh Binh. The flow of the Red and Day rivers combined with the diurnal tidal regime has accumulated at the mouths of the two rivers, creating two large coastal alluvial flats: Con Lu, Con Ngan (Giao Thuy) and Con Troi and Con Mo (Nghia river). Hung). In addition to the two large rivers, the province also has tributaries of the Red River flowing into the Day River or into the sea. From north to south, there is the Dao River as the conventional boundary for the south and north of the province, the Ninh Co river flows into the Lac estuary (often called Got Chang), the So river (also known as the Ngo Dong river) empties into the Ha Lan estuary.

Flora and Fauna: As of 2000, the province has 4,723 ha of forests of all kinds, mainly protection forests. The main crops are tiger, parrot, casuarina, cork. Flora accounts for about 50%, fauna accounts for about 40% of plant and animal species in the country.

 Population: Population: 2000160 people (in 2008). Average population density: 1211 people/km². Ethnic groups living in Nam Dinh are mainly Kinh, following two main religions, Buddhism and Christianity.

 Economy: Nam Dinh is located in the key food production area of ​​the Northern Delta. At the same time, having a relatively early development of industrial production with many traditional occupations, it is one of the leading textile and garment centers of the country. Gross domestic product in the province is estimated at VND 9458 billion, up 7.1% compared to 2008 (planned to increase by 7%). GDP per capita reached 12.2 million VND (10.5 million VND planned). In 2008, the economic structure was: Agriculture, forestry and fishery: 30.5%; Industry and construction: 35.1%; Services: 34.4%. In 2009 the planned economic structure is: Agriculture, Forestry and Fisheries: 29.8% (Estimated implementation: 30.1%); Industry and construction: 35.8% (Estimated TH: 35.6%); Services: 34.4% (Estimated TH: 34.3%). The total export value of the province reached 210 million USD (200 million USD plan). Total social investment capital in the province is estimated to be implemented at 8,800, increasing by 19.4% (the plan is to increase by 10%).

 The transportation system is diverse and convenient:

■ By road: National Highway 21 from Hoa Binh through Phu Ly to Nam Dinh city and then to Hai Thinh port (the section through Nam Dinh is 75 km long). National Highway 10 from Quang Yen to Hai Phong, Thai Binh through Nam Dinh and then to Ninh Binh (the section through Nam Dinh is 34 km long). Provincial road 12 from Nam Dinh city to Y Yen is 20 km long. Provincial road 57 from Cat Dang to Yen Tho (Y Yen) is 17 km long. Provincial road 55 from Nam Dinh to Rang Dong farm is 51 km long. The road 56 interprovincially from Binh Luc (Ha Nam) to Goi (Vu Ban), through Lieu De (Nghia Hung), Yen Dinh (Hai Hau) to Ngo Dong (Giao Thuy) is 70 km long.
■ Railway: The North-South railway running through Nam Dinh is 42km long, with stations: Nam Dinh station is the stop for express trains running throughout the North-South, Cau Ho station, Dang Xa station, Trinh Xuyen station, Goi station, Cat Dang station.

■ Waterway: The system of Red River, Day River, Ninh Co River flows through the province with a length of 251km along with the system of Nam Dinh River Port, Thinh Long Seaport, which is convenient for the development of water transport.

Làm nhanh giúp mik nha

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