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Hydrogen peroxide is a reactive oxygen species and the simplest peroxide, a compound having an oxygen–oxygen single bond. It decomposes slowly into water and elemental oxygen when exposed to light, and rapidly in the presence of organic or reactive compounds.
Gaza's agricultural sector was adversely affected as one-third of the Strip was appropriated by Israel, competition for scarce water resources stiffened, and the lucrative cultivation of citrus declined with the advent of Israeli policies, such as prohibitions on planting new trees and taxation that gave breaks to Israeli producers, factors ...
Steam is a video game digital distribution service and storefront developed by Valve Corporation. It was launched as a software client in September 2003 to provide game updates automatically for Valve's games, and expanded to distributing third-party titles in late 2005. Steam offers various features, like game server matchmaking with Valve ...
Earth has a dynamic atmosphere, which sustains Earth's surface conditions and protects it from most meteoroids and UV-light at entry. It has a composition of primarily nitrogen and oxygen. Water vapor is widely present in the atmosphere, forming clouds that cover most of the planet. The water vapor acts as a greenhouse gas and, together with other greenhouse gases in the atmosphere ...
At the federal level, race and ethnicity have been categorized separately. The most recent United States census recognized five racial categories ( White, Black, Native American / Alaska Native, Asian, and Native Hawaiian / Other Pacific Islander ), as well as people who belong to two or more of the racial categories.
Phase-out of incandescent light bulbs. Various governments have passed legislation to phase out manufacturing or importation of incandescent light bulbs for general lighting in favor of more energy- efficient alternatives. The regulations are generally based on efficiency, rather than use of incandescent technology.