21. Antarctic oases and dry valleys develop in areas with particular regional weather patterns and geography. 22. They presently appear as dry valleys , lakes, seabed depressions, and as areas filled with sediment. 23. This lay to the south in a dry valley . 24. Now 73, he completed his latest arduous research season in the dry valleys in January. 25. B�ttingen sits on a plateau in the southwestern Swabian Jura in a long dry valley . 26. The chalk displays all its characteristic features such as steep sided dry valleys , and sunken roads. 27. She also contributed to some of the pivotal discoveries on microbiology of the McMurdo Dry Valleys . 28. The site is in a dry valley on the north side of the village of Wetwang. 29. Ascending a dry valley , a rare Antarctic phenomenon. 30. They spent four months in Antarctica in the McMurdo Dry Valleys collecting data and rock specimens.
