natural environments
31natural gas — a combustible mixture of gaseous hydrocarbons that accumulates in porous sedimentary rocks, esp. those yielding petroleum, consisting usually of over 80 percent methane together with minor amounts of ethane, propane, butane, nitrogen, and,… …
32Natural resource — Primary resource redirects here. For original sources used in research, see Primary source. The rainforest on Fatu Hiva, Marquesas Islands is an example of an undisturbed natural resource. Forest provides timber for humans; food and shelter for… …
33Natural user interface — In computing, a natural user interface, or NUI, is the common parlance used by designers and developers of computer interfaces to refer to a user interface that is effectively invisible, or becomes invisible with successive learned interactions,… …
34Natural gas — For other uses, see Natural gas (disambiguation). Natural gas extraction by countries in cubic meters per year. Natural gas is a naturally occurring gas mixture consisting primarily of methane, typically with 0–20% higher hydrocarbons[1] …
35Natural selection — For other uses, see Natural Selection (disambiguation). Part of a series on Evolutionary Biology …
36Natural Selection (video game) — For other uses, see Natural selection (disambiguation). Natural Selection Developer(s) Unknown Worlds Entertainment …
37Natural product drug discovery — This article describes the utilization of natural resources in the process of finding new drug compounds, an approach commonly referred to as natural product drug discovery . Together with synthetic chemistry, they represent complementary… …
38Natural building — A natural building involves a range of building systems and materials that place major emphasis on sustainability. Ways of achieving sustainability through natural building focus on durability and the use of minimally processed, plentiful or… …
39Natural ventilation — The ventilation system of a regular earthship. Natural ventilation is the process of supplying and removing air through an indoor space without using mechanical systems. It refers to the flow of external air to an indoor space as a result of wind …
40Natural History Museum of Utah — Coordinates: 40°45′51″N 111°51′04″W / 40.7642°N 111.8511°W / 40.7642; 111.8511 …
