Land, sometimes referred to as dry land, is the solid surface of the Earth that is not permanently covered by water. The vast majority of human activity occurs in land areas that support agriculture, habitat, and various natural resources. Some life forms have developed from predecessor species that lived in bodies of water. Areas where land meets large bodies of water …

Nature, in the broadest sense, is the natural, physical, or material world or universe. “Nature” can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large part of science. Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena. The …

There are two main meanings for the word landscape: it can refer to the visible features of an area of land, or to an example of the genre of painting that depicts such an area of land. Landscape, in both senses, includes the physical elements of landforms such as mountains, hills, amazing water bodies such as rivers, lakes, ponds and …

Sunset or sundown, is the daily disappearance of the Sun below the western horizon as a result of Earth’s rotation. The time of sunset is defined in astronomy as the moment when the trailing edge of the Sun’s disk disappears below the horizon. Near to the horizon, atmospheric refraction causes the ray path of light from the Sun to be …