Examlex
Which of the following choices represent(s) a pair of resonance forms?
Blood
A vital fluid in humans and other animals that transports oxygen and nutrients to the body's cells and carries away waste products.
Atmospheric Lead
Lead particles that are present in the atmosphere, often resulting from industrial processes and the past use of leaded gasoline, which can have harmful health effects.
Pollution Prevention
Involves strategies and practices aimed at reducing or eliminating the creation of pollutants and waste at their source, before they can cause environmental harm.
Emission-Control Devices
Technologies or apparatus installed in vehicles and industrial plants to reduce the emission of harmful substances.
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