Question

match the columns
group A
1.adulsa
2.zero shadow
3.frequency
4.compass
5.flute

group b
1.invisible shadow
2.meaured in Hz
3.vibration in the air
4.A magnetic needle
​

Answer 1

Answer:

Group A Group B

2. Zero shadow. 1. Invisible shadow

3. Frequency. 2 Measured in HZ

4. compass 4.A magnetic needle

5. Flute 3.Vibration in the air