man-made injection of pollutants
11materials science — the study of the characteristics and uses of various materials, as glass, plastics, and metals. [1960 65] * * * Study of the properties of solid materials and how those properties are determined by the material s composition and structure, both… …
12Persian Gulf — Khaleej redirects here. For other uses, see Khaleej (disambiguation). Persian Gulf …
13River Irwell — Geobox|River name = River Irwell native name = other name = other name1 = image size = image caption = The River Irwell at Salford, looking towards Manchester City Centre etymology = country = England country1 = state = state1 = region = region1 …
14radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …
15Energy policy of the United States — The energy policy of the United States is determined by federal, state and local public entities in the United States, which address issues of energy production, distribution, and consumption, such as building codes and gas mileage standards.… …
16environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
17Internal combustion engine — The internal combustion engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs with an oxidizer (usually air) in a combustion chamber. In an internal combustion engine, the expansion of the high temperature and high …
18Diesel engine — Diesel engines in a museum Diesel generator on an oil tanker …
19Road — This article is about a route, thoroughfare or way that supports travel by a means of conveyance. For a place outside a harbor where a ship can lie at anchor, see Roadstead. For public roads, see Highway. For other routes, see thoroughfare. For… …
20Biofuel — Information on pump regarding ethanol fuel blend up to 10%, California …
