[word=But | lemma=□]
[word=But | lemma=and]
Snow and ice play important interactive roles in regional climates , because snow has a higher albedo than any other natural surface . Occasionally oedema does appear on plants that have been kept relatively dry and have grown under conditions of low humidity . Many different mapping organizations around the world produce and distribute elevation data , which vary widely in scale , accuracy , format , datum , distribution policy , copyright , royalty restrictions , and price . During the process of repotting , prune decayed roots and provide proper soil drainage . Science Discipline Panel workshops and meetings , held in Late October and early November focused on Questions 1-4 .