Example sentences of "they occur [adv] in " in BNC.

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1 One advantage of graptolites is that they occur predominantly in former oceanic environments — the deeper water shales or limestones discussed in Chapter 3 .
2 Emotions occur in response to actual happenings ; they occur also in response to imagined happenings ; and the latter emotions are real , happening in the present , even though they are called up by unreal situations .
3 An individual 's genes are not unique to itself ; they occur also in animals to which it is genetically related through genealogical descent .
4 Some of these connectives would seem stilted and inappropriately formal in conversation or personal writing such as a friendly letter , but they occur frequently in formal expository writing .
5 They occur mostly in the form of single or multiple loops , although some are pointlike .
6 This may be because they occur only in association with a particular element , like the cran — of cranberry , or because they occur with a particular semantic value only in the context of one other element , like the — en of oxen , the ab — of abnormal , or foot in foot the bill ; in a case of collocational uniqueness of either of these types , no contrast in which the unique element participates can be tested in a distinct linguistic environment .
7 These are the most interesting to fishkeepers because they occur mainly in tropical areas where rivers give high rates of sediment accumulations trapping pools and lakes of brackish water .
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