One benefit of research conducted on the ISS was
finding ways to prevent astronauts' bone loss while in
space, which benefits those who suffer from

loss blood and illnesss loss Weight

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.