Answer:
That the polar air has has more pressure than the air at the equator.
Explanation:
The separation in time between the arrival of primary and secondary wave is called LAG TIME.
The time difference between the arrival of primary wave and secondary wave in a seismogram is called lag time. The primary wave always travels faster than the secondary wave, thus the difference between the two can be obtained by estimating the difference between the arrival time of the two waves/.
Hmm doesnt soujd familiar
Answer:
The stars at the center bulge are bigger and brighter than the stars in the arms.
Explanation: