Answer:
I would say that an observation is a factual statement. Observations are purely what is seen. An inference and interpretation often include opinions, which is the opposite of a fact.
Answer:Compromise of 1850
Explanation:
Speed of sound wave v=νλ=2000×0.35=700 m/s
Distance d=1.5 km=1500 m
Time t=vd=7001500≈2 s
