Which of the following would be considered a benefit of overproduction?

a. the expontential growth of a population
b. the survival of the fittest due to competion for resources
c. the exchange of genetic material between populations
d. the change in an ecosystem due to the increased population

a- multicellular

b-eukaryotic

c-no cell wall

d-heterotrophic

e-autotrophic

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.