Question

Q-2 A

1 Answer the following in brief: State one secondary sexual characters, for both a girl and a boy, that take place at puberty .

2. Write the difference. Audible sound and Inaudible sound 2. -- forces​

Answer 1

Answer:

2.Audible Sounds are the sounds of frequency which are audible to the human ear. The frequency of audible sounds is usually between 20Hzto20kHz. Inaudible sounds are the sounds of frequency which are not audible to the human ear.

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Answer 2

Explanation:

Psychology includes the study of conscious and unconscious phenomena, as well as feelings and thought. 2) Chlorophyll is any of several related green pigments found in the mesosomes of cyanobacteria and in the chloroplasts of algae and plants.