Question: There are no corners for the XL sizes of the product
Please fix the punctuation.
Fixed: [There are no corners for the XL sizes of the product.]

Question: A case study provides the opportunity to examine a situation in detail yet be removed from the pressures of the real work situation
Please fix the punctuation.
Fixed: [A case study provides the opportunity to examine a situation in detail yet be removed from the pressures of the real work situation.]

Question: It has been scientifically proven that moderate individually tailored sporting activity ensures optimum cardiovascular function Cooper Institute DallasTexas
Please fix the punctuation.
Fixed: [It has been scientifically proven that moderate, individually tailored sporting activity ensures optimum cardio-vascular function (Cooper Institute Dallas/Texas).]

Question: The Denmark Expedition is also special because it mapped the last unknown places in Northeast Greenland Unfortunately it also cost the lives of three people among them the leader of the expedition Ludvig MyliusErichsen
Please fix the punctuation.
Fixed:
[The Denmark Expedition is also special because it mapped the last unknown places in Northeast Greenland. Unfortunately, it also cost the lives of three people, among them the leader of the expedition, Ludvig Mylius-Erichsen.]