Example sentences of "[pron] [verb] [adv] upon [noun sg] " in BNC.

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1 This interest is undoubtedly driven by the search for plastic materials derived from sustainable carbon sources and which biodegrade naturally upon disposal .
2 Butterflyfish are prime examples of this group many species of which feed exclusively upon coral polyps while other benthic foragers such as Porcupinefish , Boxfish and Puffers will eat anything they can catch .
3 Green 's , No. 2 Brazenose Street , who has now upon sale a valuable collection of Prints etc .
4 An ordinary shut door , for example , would not be opaque to you , if you were one of those species of bat or whale who relied heavily upon detection of sound waves !
5 They rely both upon colour and a variety of simple visual devices .
6 It concentrates particularly upon benefit in terms of deferment of long-term or short-term institutionalisation ( Was the project successful in sustaining at home people who without the enhanced care would have been in institutional care earlier ? ) .
7 The Zambian economy became extremely lop-sided , in that it relied inordinately upon copper exports .
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