North= north pole
South= south pole
Operational definitions are statements of the procedures used to define the research variables in a study. having these helps other researchers<u> "replicate" </u>the study.
An operational definition, when applied to information gathering, is an unmistakable, succinct point by point meaning of a measure. The requirement for operational definitions is central when gathering a wide range of information. It is especially critical when a choice is being made about in the case of something is right or off base, or when a visual check is being made where there is space for confusion.
Hunter-gathers has better life because they relies on our natural environment on hunting,fishing and foraging for wild vegetation and other nutrients like honey for food . Which is why they are strong and healthy.
Answer:
biosphere is the regions of the surface and atmosphere of the earth or another planet.