(Question)
Energy is used for heating a building by a heating system, and radiators are used to heat the building, The energy source is oil. Given these facts, what is used to heat a building among the following options: - water - iron - coal - fire - gas - CFCs - oxygen - oil
(Answer)
oil

(Question)
Pneumonia may be caused by an infection or injury of the lungs, and if fluid builds up within the lung tissue , it is called pneumonia. Given these facts, what might infection or injury of the lungs cause among the following options: - decrease stamina - death and devastation - a lot of human deaths - stomach - destroying life - good health - h2o vapor - lung tissue fluid build up
(Answer)
lung tissue fluid build up

(Question)
Male dogs use pheromones in urine to mark their territory, and pheromones are a sub-category of semiochemicals. Given these facts, what uses semiochemicals in urine to mark territory among the following options: - koalas - bacteria - humans - dogs - bears - cats - the Sun - rabbit
(Answer)
dogs