A pressure gauge installed at the foot of the water tower shows 240 kPa. What is the height of the water level in the tower? Water density 1000kg / m3.

are their multiple choices ?

explanation:

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me