Question

give me ur ans quick plzzz I want now....!!!!!!!!!!!!​

Answer 1

Answer:

1) A

2) B

3) A

4) A

5) B

hope it helps

Answer 2

Answer:

1. a) loud sound

2. a) frequency

3. a) decibel (dB)

4. It should be 20 times per second (But there is no option as 20)

5. a) 20 cm blade.