4.1 Urban & Rural Land*

Explanation
Land that contains few people and large areas of open space is called rural. Rural areas are typically characterized by agricultural activities, natural landscapes, and low population density. These areas are often located far from urban centers and have a slower pace of life. The term "rural" is used to describe the countryside or areas outside of cities and towns.

Explanation
Rural land provides several benefits such as controlling temperature and preventing flooding. However, it is not a source of carbon dioxide. In fact, rural land can help absorb carbon dioxide through the process of photosynthesis, as plants and trees use carbon dioxide during their growth. Therefore, the correct answer is that rural land is not a source of carbon dioxide.

Explanation
Urban areas are often covered with buildings and contain many people. This is because urban areas are characterized by the presence of man-made structures such as houses, offices, and commercial buildings. These buildings are essential for accommodating the large population that resides in urban areas. The high concentration of people in urban areas is a result of factors such as job opportunities, access to amenities, and social and cultural activities that are often more readily available in urban settings.

Explanation
Preserving rural land is important to clean the air and water. Rural areas often have natural resources such as forests and wetlands that act as filters, absorbing pollutants and purifying the air and water. These natural ecosystems help to remove harmful substances and maintain the quality of the environment. By preserving rural land, we can protect these vital natural resources and ensure the continued availability of clean air and water for both rural and urban areas.

Explanation
Rural land provides several benefits such as purifying air and water and preventing flooding. However, it does not increase carbon dioxide levels. In fact, rural land can help reduce carbon dioxide levels through processes such as photosynthesis, where plants absorb carbon dioxide and release oxygen.

Explanation
Residential areas immediately outside of cities are known as suburban. Suburban areas are characterized by their proximity to urban areas, with a mix of residential, commercial, and industrial developments. They offer a more relaxed and quieter living environment compared to the bustling city centers. Suburbs typically have lower population densities, larger housing lots, and more green spaces. They often provide a balance between urban amenities and a more suburban lifestyle, making them attractive to families and individuals looking for a quieter living environment while still having access to city amenities.

Explanation
Urban land refers to land that is developed for residential, commercial, and industrial purposes within a city or town. Farming, on the other hand, involves the cultivation of crops or raising of livestock in rural areas. Therefore, farming is not a typical use for urban land, as it is more commonly associated with rural or agricultural areas.

Explanation
The statement is false because rural land is typically characterized by low population density, meaning that there are fewer people living in rural areas compared to urban or suburban areas. Rural areas are known for their open spaces, agricultural activities, and less crowded living conditions.

Explanation
Rural land is indeed useful because it plays a crucial role in recycling nutrients back into the soil. This process involves the decomposition of organic matter, such as plant and animal waste, which enriches the soil with essential nutrients for plant growth. Additionally, rural land can help prevent flooding caused by surface runoff. The vegetation and soil in rural areas act as natural filters, absorbing and slowing down rainwater, reducing the risk of flooding downstream. Therefore, the statement is true.