Nomads are people who move around and do not have a permanent home due to finding food for themselves or the herds of animals that they manage. true or false?

Yes, this is true. Nomads are people who travel according to where their resources are.

Ido believe it is b 

Aeolian processes,  pertain to  wind  activity in the study of  geology  and  weather  and specifically to the wind's ability to shape the surface of the  earth  (or other  planets). winds may  erode, transport, and deposit materials and are effective agents in regions with sparse  vegetation, a lack of soil moisture and a large supply of unconsolidated  sediments. although water is a much more powerful eroding force than wind, aeolian processes are important in arid environments such as  deserts