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प्रश्न
Study the diagram given below and then answer the question that follows:

Identify the tooth and give a reason to support your answer.
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उत्तर
The tooth shown in the diagram has only one root, so it is an incisor or canine which is used for biting and piercing.
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संबंधित प्रश्न
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| If the teeth are not cleaned regularly, they become covered with a sticky yellowish layer W of food particles and bacteria. Since layer W covers the teeth, the alkaline liquid X secreted by glands Y inside the mouth cannot reach the teeth surface to neutralise the acid formed by the action of organisms Z on sugary food, and hence tooth decay sets in. |
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- State one way of removing layer W from the teeth.
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