landscape background with cloud and land

ean:The layout of a land area, particularly with respect to its appearance and character. A landscape includes such elements as landforms, bodies of water, flora and fauna, and lighting and weather conditions (the natural elements), as well as human presence and human-built elements (the cultural elements or built environment). See also Landscape Architecture, Landscape Ecology and Landscape Engineering, Landscape Planning, Landscape Design. See more at Wikipedia.org...

>For other uses, see Cloud (disambiguation). A cloud is a visible mass of condensation droplets or ice crystals suspended in the atmosphere above the surface of the Earth or another planetary body.On Earth, the condensing substance is water vapor, which forms small droplets of water (typically 0.01 mm of ice crystals) that, when surrounded with billions of other droplets or crystals, are visible as clouds. Clouds reflect all visible wavelengths of light equally and are usually white, but they can appear grey or even black if they are so thick or dense that sunlight cannot pass through. See more at Wikipedia.org...

[tack is a DoS (Denial of Service) attack that consists of sending a special poison spoofed packet to a computer, causing it to lock up. The security flaw was first discovered in 1997 by someone using the alias "m3lt", and has resurfaced many years later in operating systems such as Windows Server 2003 and Windows XP SP2. See more at Wikipedia.org...]