Answer:
6 seconds
0.167 Hz
Explanation:
Distance = 4 m
Velocity = 0.75 m/s
Period is given by

The period of the motion is 3 seconds
Frequency is given by

The frequency of the motion is 0.33 Hz
ur answer is C) Bubbles formed in the magma when it was still in liquid form.
Colour: Colourless
Solubility in water: Slight
Freezing point: -218
I didn't get the boiling point