Answer:
the angle of earth's axis is tilted at an angle of 66.5° on its orbital plane and 23.5° on the line that is perpendicular to its orbital plane
This is my opinion but based on the connotations of the words I would say that an observation is the information you gather from something indirectly, like you're not asking someone a specific question. For example, if I see that someone eats everything on their plate except their carrots, i can observe that they do not like carrots. However, an interview would be directly asking a question for an answer. I do not have to watch someone not eat the carrots on their plate to know they don't like carrots because I will ask instead.
Here is the answer that would best complete the statement above. The weight of bodies may change somewhat from one location to another as a result of the variation <span>of the gravitational acceleration g with elevation. Hope this is the answer that you are looking for. Have a great day!</span>
Immune system hope this helps