Purple coneflower is a common plant in indiana. one year during a drought, the plants that had a shorter growing period survived better than the ones with a longer growing period. what effect did this most likely have on the plants? a) there was no change. b) the plants all died out. c) the plant adapted to have a longer growing period. d) the plant adapted to have a shorter growing period.

D the plants will adapt to having shorter growing periods

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.