Science Practice Quiz 178

Q1.How do inhalation and exhalation occur during the process of breathing?

A. They occur simultaneously B. They take place alternately C. Inhalation always occurs twice for every exhalation D. Exhalation always occurs twice for every inhalation

Q2.What happens to a person's breathing rate when they need extra energy?

A. It slows down to conserve energy B. It remains constant regardless of energy needs C. It becomes faster to supply more oxygen D. It becomes irregular and shallow

Q3.What did Boojho observe after holding his breath for some time and then releasing it?

A. He felt a sudden urge to drink water B. He had to breathe heavily C. He experienced a temporary loss of smell D. He felt light-headed and dizzy

Q4.What is a general characteristic of human awareness regarding the act of breathing?

A. Humans are constantly aware of their breathing process B. Humans are generally not aware that they are breathing C. Humans can only become aware of their breathing during strenuous activity D. Humans are only aware of their breathing when they hold their breath

Q5.What is the average breathing rate of an adult human being at rest?

A. 10-12 times per minute B. 15-18 times per minute C. 20-22 times per minute D. 25-30 times per minute

Q6.During heavy exercise, up to how many times per minute can an adult human's breathing rate increase?

A. 18 times per minute B. 20 times per minute C. 25 times per minute D. 30 times per minute

Q7.Which of the following represents the correct pathway of air during inhalation in humans?

A. Nostrils → Windpipe → Nasal cavity → Lungs B. Nasal cavity → Nostrils → Windpipe → Lungs C. Nostrils → Nasal cavity → Windpipe → Lungs D. Lungs → Windpipe → Nasal cavity → Nostrils

Q8.Which structure forms the floor of the chest cavity where the lungs are located?

A. Rib cage B. Windpipe C. Diaphragm D. Nasal cavity

Q9.What happens to the diaphragm and ribs during inhalation?

A. Diaphragm moves up, ribs move down and inwards. B. Diaphragm moves down, ribs move up and outwards. C. Diaphragm moves up, ribs move up and outwards. D. Diaphragm moves down, ribs move down and inwards.

Q10.During exhalation, how do the ribs and diaphragm move?

A. Ribs move up and outwards, diaphragm moves down. B. Ribs move down and inwards, diaphragm moves up. C. Ribs move up and outwards, diaphragm moves up. D. Ribs move down and inwards, diaphragm moves down.

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Science Practice Quiz 178