Q2. (B ) Explain giving scientific reason :
(1) It is advisable to breathe through our nose.
(2) Repulsion is the sure test for magnetism.
Answers
Answer:
1) Breathing through the nose forces us to slow down until proper breath is trained; therefore, proper nose breathing reduces hypertension and stress. It also helps prevent us from overexerting ourselves during a workout. Our nostrils and sinuses filter and warm/cool air as it enters our bodies.
2)Repulsion is the sure test for magnetism because it occurs only when two like poles of a magnet exist while the attraction phenomenon can occur between two unlike poles of a magnet and also between a magnet and a magnetic material means if there are two magnets they will attract each other and suppose if one material ...
Explanation:
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Answer:
1)The nose also adds moisture and warmth to inhaled air for smoother entry to the lungs. Nasal breathing, as opposed to mouth breathing, has another important advantage, especially for effective and efficient exercise: It can allow for more oxygen to get to active tissues.
2)Repulsion is the sure test for magnetism because it takes place only between two like poles of a magnet whereas attraction takes place between two unlike poles of a magnet and also between a magnet and a magnetic material.