They participate together in a trading bloc. they have suffered more than most other countries in the recent recession. they are asian countries experiencing explosive population growth. they are the four countries known for the highest levels of bribery in business and government. they are experiencing significant levels of economic growth.

Czech republic is the eastern europe an nation

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