Atpms dash warning is flashing.
a) technician a says that this means that a low tire has been detected.
b) technician b says that this means that the system has detected a fault such as a wheel sensor that is not broadcasting data.
which technician is correct?

Technician A is correct        

Explanation:

                 A TPMS stands for tire pressure monitoring system. It is a device used to detect lower tire pressure and warns the driver about it.

                 When the device detects a low inflation pressure of a tire, the tire pressure monitoring system starts flashing light and it this provides signal to the driver about the tire pressure.

Hence the answer is Technician A is correct.

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.

i think it is the third one.