A researcher is culturing cells in an incubator where the gas levels are carefully regulated. If the researcher observes that the pO2in the incubator is 200 mmHg, what can the researcher deduce about the pO2 of her cells? A) The pO2 of her cells is greater than 200 mmHg. B) The pO2of her cells is less than or equal to 200 mmHg. C) The pO2of her cellsmustbe greater than 400 mmHg. D) No determination can be made regarding the pO2in these cells. E) None of the answer options is correct.

2%? i tried finding the exact sorry if it's not 100% correct ; -;

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.