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Chang and Wetzel ( 1991 ) have concluded that the spatial variations of vegetation and soil moisture affect the surface baroclinic structures through differential heating , which in turn indicate the location and intensity of surface dynamic and thermodynamic discontinuities necessary to develop severe storms . In addition , a number of studies have shown the power of multidate imagery for enhanced classification results ( Ranson and Sun , 1994 ) . In addition , schools will need to make a stand against misrepresentation and falsehoods in relation to refugees and asylum-seekers in certain sections of the media , and to assure pupils from refugee communities of their support . The same insects that are pests of apple — codling moth , plum curculio and apple maggot among them — may harm developing pear fruits as well . This module aims to : develop skills in structuring an argument in formal written French , through the use of linking expressions , the language of discussion and debate , and the ability to create a cohesive , coherent text ; enable students to enrich their active vocabulary over a range of topics relating to current socio-political issue and debates and to areas such as cause / effect and change ; increase accuracy and confidence in dealing with complex structures . These processes are fairly dynamic and subject to change in response to a variety of environmental factors ( e.g ., temperature , moisture , nutrient availability ) and patterns of disturbance , both natural ( e.g ., fire , windthrow , insect-induced mortality ) and anthropogenic ( deforestation , land degradation ) ( e.g ., Solomon and Cramer , 1993 ) .