Q1.Explain what happens to intercoastal muscles and diaphragm as you breath in and out.

Question

Eloise · Answer

Explanation:   When you exhale: the external intercostal muscles relax and the internal intercostal muscles contract, pulling the ribcage downwards and inwards. the diaphragm relaxes, moving back upwards. lung volume decreases and the air pressure inside increases.

Liliana

Identify
10 verbs, adjectives, conjunction and prepositions from those articles.

B. Arrange these words in alphabetical order and write them below.
COW
sun
banana
Jupiter
uniform
sc

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