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"Smoking is dangerous to your health” Several studies on smoking indicate that people have begun to smoke more than 2000 years ago.
Soma Zaidi...SCIENTIFIC PROCESSES IN BIOLOGYY THE USE OF SENSE ORGANS TO MAKE CORRECT OBSERVATION Sense organ this is an organ of the body that responds to external stimuli by conveying impulses to the sensory nervous system.
Soma Zaidi...THE WARNING SIGNS ON CONTAINERS OF LABORATORY CHEMICALS AND APPARATUS Warning signs these are symbols which indicates a possible danger, problem, or other unpleasant situation.
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