Iple Choice Questions (US) 1. A plant which reproduces by spores is :
(a) rose
(b) bread mould
(c) potato
(d) ginger

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

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.