Which of these are characteristics of a strong scientific clairn? check all that apply
the claim cites a specific source
the claim is proposed by an expert in the field
the claim is supported by a large sample size
the claim is the opinion of a non expert
the claim is supported by public opinion

is in the form atp or adenosine triphosphate

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.

the correct answer is 2 and 4