An indicator species is an organism whose presence, absence or abundance reflects a specific environmental condition. Indicator species can signal a change in the biological condition of a particular ecosystem, and thus may be used as a proxy to diagnose the health of an ecosystem.
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Tobacco or nicotine marketing is the marketing of nicotine-containing products or use.From the given options the following is not a reason why media advertisements for tobacco are controlled: They promote the health risks of smoking. However, mass media anti-smoking counter advertising campaigns can stimulate quitting activity and can lead to detectable declines in smoking prevalence
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