Two identical ambulances with loud sirens are driving directly towards you at a speed of 40 mph. One ambulance is 2 blocks away and the other is 10 blocks away. Which of the following is true? 
[Note that pitch = frequency.]a) The siren from the closer ambulance sounds higher pitched to you. b) The siren from the farther ambulance sounds higher pitched to you. c) The pitch of the two sirens sounds the same to you. d) The siren from the farther ambulance sounds higher pitched, until the
 closer ambulance passes you.

The horse latitudes-high-pressure zones about 30 degrees north and 30 degrees south of the equator.-warm air traveling away from the equator cools and sinks-weather tends to be clear and drythe doldrums-low-pressure near equator-air rises and spreads out toward the poles-rising moist air produces clouds and heavy rainthe westerlies-blow from the west-move from the horse latitudes toward the poles.-bring storms across much of the united statesthe tradewinds-blow from the east-move from the horse latitudes toward the equator  -strong, steady winds