Which of the following explains why snacking is a major contributor to obesity? snacks have replaced regular meals. snacks often contain multiple serving sizes. snack sizes are smaller, so people eat more. snacks are often full of empty calories and fat.

What is difference between an epidemic and a pandemic? a) an epidemic is a disease; a pandemic is a treatment.b) an epidemic is restricted to a local region; a pandemic is global.c) an epidemic has low mortality; a pandemic has higher mortality.d) an epidemic is caused by a bacterial infection; a pandemic is caused by a viral infection.