How many examples do the authors give to support their generalization that countries other than the u. s. are experiencing an increase in obesity

b

explanation:

i cannot see a paragraph to answer the question

answers may vary, but my guess based on my personal education it has alwats been 3 or 4

a constant variable, normally called a controlled variable, is the term for a variable that remains constant throughout an experiment, though other variables may change. an example is the water pressure for a faucet when measuring the amount of water released when the faucet is opened to various increments.