coverage by combustion zone
21hydrologic sciences — Introduction the fields of study concerned with the waters of the Earth. Included are the sciences of hydrology, oceanography, limnology, and glaciology. In its widest sense hydrology encompasses the study of the occurrence, the… …
22Climate change — For current and future climatological effects of human influences, see global warming. For the study of past climate change, see paleoclimatology. For temperatures on the longest time scales, see geologic temperature record …
23Nigeria — This article is about the country. For other uses, see Nigeria (disambiguation). Federal Republic of Nigeria Jamhuriyar Taraiyar Nijeriya …
24Maritime history of California — History of California This article is part of a series Timeline …
25Cell site — Cell phone tower in Palatine, Illinois, USA. A short mast cell site o …
26Argentina — For alternative meanings, see Argentina (disambiguation) and Argentine (disambiguation). Argentine Republic[1] …
27Traînée de condensation — Traînées de condensation derrière un avion quadriréacteur Boeing 747 …
28nuclear reactor — Physics. reactor (def. 4). Also called nuclear pile. [1940 45] * * * Device that can initiate and control a self sustaining series of nuclear fission reactions. Neutrons released in one fission reaction may strike other heavy nuclei, causing them …
29Ozone depletion — Image of the largest Antarctic ozone hole ever recorded (September 2006) Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth s… …
30Christopher Titus — Born October 1, 1964 (1964 10 01) (age 47) Castro Valley, California, U.S. Nationality American …
