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Air pollution can cause diseases, allergies, and even death; it can also cause harm to animals and crops and damage the natural environment (for example, climate change, ozone depletion or habitat degradation) or built environment (for example, acid rain). [3] Air pollution can occur naturally or be caused by human activities. [4]
Airpower can be considered a function of air supremacy and numbers. Roughly speaking, a combatant side that has 100% or near 100% control of the skies has air supremacy; an advantage of some 70–90% would indicate air superiority. A 50/50 split is air parity; lower than this, one side may be said to be air denied or air incapable.
The Royal Air Force Centre for Air and Space Power Studies (RAF CASPS), known as the Royal Air Force Centre for Air Power Studies (RAF CAPS) until 2019 is a Royal Air Force sponsored think tank which engages in the study of air power. The centre was launched on 23 August 2007 by Air Chief Marshal Sir Glenn Torpy, Chief of the Air Staff. [1]
Life exists all over the Earth in air, water, and soil, with many ecosystems forming the biosphere. Some of these are harsh environments occupied only by extremophiles . Life has been studied since ancient times, with theories such as Empedocles 's materialism asserting that it was composed of four eternal elements , and Aristotle 's ...
Life arose from the Earth's first ocean, which formed some 3.8 billion years ago. [33] Since then, water continues to be the most abundant molecule in every organism. Water is important to life because it is an effective solvent, capable of dissolving solutes such as sodium and chloride ions or other small molecules to form an aqueous solution.
The commander of 1 Canadian Air Division and Canadian NORAD Region, based in Winnipeg, is responsible for the operational command and control of Royal Canadian Air Force activities throughout Canada and worldwide. 2 Canadian Air Division was established in June 2009, and consists of training establishments. The other division, 3 Canadian Space ...
The State of Science and Technology in Canada, 2012. Council of Canadian Academies. ISBN 978-1-926558-47-9. G. Bruce Doern; Peter W. B. Phillips; David Castle (2016). Canadian Science, Technology, and Innovation Policy: The Innovation Economy and Society Nexus. McGill-Queen's University Press. ISBN 978-0-7735-4724-7.
In 2004, Canada and the U.S. signed the Canada-U.S. Agreement on Science and Technology Cooperation for Critical Infrastructure Protection and Border Security designed to speed the introduction of a number of electronic, wireless, computer and detection technologies to scrutinize cross-border traffic while at the same time limiting the ...