TLS Online TPP Program

#Question id: 13177


Deserts typically occur in a band at 30 degrees north and south latitude because

#Unit 10. Ecological Principles
  1. Descending air masses tend to be cool  and dry.
  2. Trade winds have a little moisture.
  3. Water is heavier than air and is not carried far over land.
  4. Ascending air tends to be moist.