Question

Science project
1.explain range of hearing ,ultrasonic and infrasonic sounds with examples,paste pictures related to these sounds and write applications also .
Draw labelled diagram of human ear.
2.What is cell ,explain different types of cells.Draw structure of plant cell and animal cell and write difference between them.
3.Explain classification of matter in detail.​

Answer 1

Answer:

hi there here is your answer

Explanation:

1. range of hearing is 20Hz to 20MHz