Which of the following BEST describes a scientific law?
0 A scientific law is a well supported description.
A scientific law is the same as a scientific theory
A scientific law is the same as a scientific hypothesis
A scientific law can easily be unproven.

a. the production of carbon dioxide through the process of photosynthesis

acceleration= v2-v1/t so 8m/s-3m/s / 3s =to 8/3 or

2.67 m/s^2

hope i

-lavira: )

i think the answer is b.

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.