water absorbing capacity
21Living machines — are a form of biological wastewater treatment designed to mimic the cleansing functions of wetlands. They are intensive bioremediation systems that can also produce beneficial by products such as methane gas, edible and ornamental plants, and… …
22vegetable farming — Introduction growing of vegetable crops, primarily for use as human food. The term vegetable in its broadest sense refers to any kind of plant life or plant product; in the narrower sense, as used in this article, however, it refers… …
23Autonomous building — An autonomous building is a building designed to be operated independently from infrastructural support services such as the electric power grid, municipal water systems, sewage treatment systems, storm drains, communication services, and in some …
24Substrate (aquarium) — Gravel in a freshwater aquarium The substrate of an aquarium refers to the material used on the tank bottom. It can affect water chemistry, filtration, and the well being of the aquarium s inhabitants, and is also an important part of the… …
25atmosphere, evolution of — Introduction the development of Earth s (Earth) atmosphere across geologic time. The process by which the current atmosphere arose from earlier conditions is complex; however, evidence related to the evolution of Earth s atmosphere, though… …
26Mauna Kea — with its seasonal snow cap visible Elevation 4,205 m (13,796  …
27Technetium — molybdenum ← technetium → ruthenium Mn ↑ Tc ↓ Re …
28Dried fruit — Traditional dried fruit retain most of the nutritional benefits of fresh fruit, and gain others …
29Geography of the People's Republic of China — China is the 3rd or 4th largest country in the world (depending on whether all PRC administered areas are included or not see List of countries and outlying territories by total area) and the one with the most people. It stretches about 5,000… …
30Soda lime — is a mixture of chemicals, used in granular form in closed breathing environments, such as general anaesthesia, submarines, rebreathers and recompression chambers, to remove carbon dioxide from breathing gases to prevent CO2 retention and carbon… …
