PhotosynthesisPhotosynthesis is a system of biological processes by which photopigment-bearing autotrophic organisms, such as most plants, algae and cyanobacteria, convert light energy—typically from sunlight—into the chemical energy necessary to fuel their metabolism. The term photosynthesis usually refers to oxygenic photosynthesis, a process that releases oxygen as a byproduct of water splitting.
SunlightLight emitted by the SunThe Sun, as seen from low Earth orbit overlooking the International Space Station. This sunlight is not filtered by the lower atmosphere, which blocks much of the solar spectrum.Sunlight shining upon two different sides of the U.S. state of New Jersey. Sunrise on the Jersey Shore at Spring Lake, Monmouth County (above), and sunset on the Shore at Sunset Beach, Cape May County (below).
Window blindA window blind is a type of window covering (also known as blinds). There are many different kinds of window blinds which use a variety of control systems. A typical window blind is made up of several long horizontal or vertical slats of various types of hard material, including wood, plastic or metal which are held together by cords that run through the blind slats. Vertical blinds run along a track system which can tilt open and closed and move side-to-side.
UmbrellaAn umbrella (parasol or rarely parapluie) is a folding canopy supported by wooden or metal ribs that is mounted on a wooden, metal, or plastic pole. It is usually designed to protect a person against sun or rain. Initially, (in the early 1200s) they were used in warmer countries for shade from the sun, but later evolved to also be used for protection from rain.
TranspirationTranspiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. It is a passive process that requires no energy expense by the plant. Transpiration also cools plants, changes osmotic pressure of cells, and enables mass flow of mineral nutrients.
CarbohydrateA carbohydrate () is a sugar (saccharide), a polysaccharide such as starch, or a derivative of these compounds. For many carbohydrates such as simple sugars, the carbon-to-hydrogen-to-oxygen atomic ratio is 1:2:1 so their empirical formula is CH2O and their molecular formulas have the form Cn(H2O)n. Along with amino acids, fats, and nucleic acids, the carbohydrates are one of the major families of biomolecules. Carbohydrates perform numerous roles in living organisms.
BrightnessBrightness is an attribute of visual perception in which a source appears to be radiating/reflecting light. In other words, brightness is the perception dictated by the luminance of a visual target. The perception is not linear to luminance, and relies on the context of the viewing environment (for example, see White's illusion).
TreePerennial woody plant with elongated trunkCommon ash (Fraxinus excelsior), a deciduous broad-leaved (angiosperm) treeEuropean larch (Larix decidua), a coniferous tree which is also deciduousIn botany, a tree is a perennialplant with an elongated stem, or trunk, usually supporting branches and leaves.
CurtainA curtain is a piece of cloth or other material intended to block or obscure light, air drafts, or (in the case of a shower curtain) water. Curtains are often hung on the inside of a building's windows to block the passage of light. For instance, at night to aid sleeping, or to stop light from escaping outside the building (stopping people outside from being able to see inside, often for privacy reasons). In this application, they are also known as draperies.
UltravioletUltraviolet radiation (UV; sometimes called ultraviolet light) is electromagnetic radiation of wavelengths of 100–400 nanometers, shorter than that of visible light, but longer than vacuum ultraviolet and extreme ultraviolet (radiation bands that overlap UV but share some properties with soft X-rays). UV radiation is present in sunlight and constitutes about 10% of the total electromagnetic radiation output from the Sun.
RoofA roof (pl.: roofs or (rarely) rooves) is the top covering of a building, including all materials and constructions necessary to support it on the walls of the building or on uprights, providing protection against rain, snow, sunlight, extremes of temperature, and wind. A roof is part of the building envelope.
YakhchālA yakhchāl (Persian: یخچال, lit. 'Ice pit'; yakh meaning 'ice' and chāl meaning 'pit') is an ancient type of ice house, which produced ice and desserts associated with it, like faloodeh, or sorbets. They are primarily found in the Dasht-e Lut and Dasht-e-Kavir deserts, whose climates range from cold (BWk) to hot (BWh) desert regions. In modern-day Iran, Afghanistan, and Tajikistan the term yakhchāl is also used to refer to modern refrigerators.
Canopy (botany)In biology, the canopy is the aboveground portion of a plant cropping or crop, formed by the collection of individual plant crowns. In forest ecology, the canopy is the upper layer or habitat zone, formed by mature tree crowns and including other biological organisms (epiphytes, lianas, arboreal animals, etc.). The communities that inhabit the canopy layer are thought to be involved in maintaining forest diversity, resilience, and functioning.*As an Amazon Associate I earn from qualifying purchases.