Search results
Results from the WOW.Com Content Network
The pigment in plant leaves, chlorophyll, strongly absorbs visible light (from 400 to 700 nm) for use in photosynthesis. The cell structure of the leaves, on the other hand, strongly reflects near-infrared light (from 700 to 1100 nm). The more leaves a plant has, the more these wavelengths of light are affected.
The importance of water to basic survival is discussed, with the recommendation that four to five quarts (3.78 to 4.73 liters) of drinking water per day per person is essential as a minimum. [11] Methods of storing, transporting, and purifying water are also explained, with plastic-lined earthen storage pits recommended for storing large ...
Honey is a sweet and viscous substance made by several species of bees, the best-known of which are honey bees. [1] [2] Honey is made and stored to nourish bee colonies.Bees produce honey by gathering and then refining the sugary secretions of plants (primarily floral nectar) or the secretions of other insects, like the honeydew of aphids.
Nitrogen must first be processed, or "fixed", into a plant-usable form, usually ammonia. Some nitrogen fixation is done by lightning strikes producing the nitrogen oxides, but most is done by diazotrophic bacteria through enzymes known as nitrogenases (although today industrial nitrogen fixation to ammonia is also significant).
[10] Shenzhen roughly follows the administrative boundaries of Bao'an County , which was established in imperial times. After the Opium Wars , the southern portion of Bao'an County was occupied by the British government and became part of British Hong Kong , while the village of Shenzhen was next to the border.
The first 8 are outcome targets, which are: implement the 10‑Year Framework of Programs on Sustainable Consumption and Production Patterns; achieve the sustainable management and efficient use of natural resources; reducing by half the per capita global food waste at the retail and consumer levels and the reduction of food losses along ...
118 chemical elements have been identified and named officially by IUPAC.A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).
Saturn is named after the Roman god of wealth and agriculture, who was the father of the god Jupiter.Its astronomical symbol has been traced back to the Greek Oxyrhynchus Papyri, where it can be seen to be a Greek kappa-rho ligature with a horizontal stroke, as an abbreviation for Κρονος (), the Greek name for the planet (). [35]