Which of the following is an example of a physical change in digestion? C. water being absorbed in the large intestines

B. enzymes break down food nutrients

C. saliva breaking down carbohydrates

D. nutrients are broken down into different molecules

Which step would a state health department most likely take to reduce lead exposure? promote health-planning operations to limit lead exposure at home.evaluate the number of countries affected by lead exposure.create general national guidelines for working with lead.carry out research on the worldwide effects of lead products.

Karen is waiting by the lockers before school for her friend richard. they had agreed to look over the history review sheet together to be ready for the test later that day. richard shows up late with uncombed hair and wrinkled clothes. karen: "you're five minutes late and you look like a wreck! " richard: (slams his locker) "you know, i don't have time for this." karen: "fine! figure out the test on your own! "

The best time to go swimming is: a. directly after eating b. when you are feeling rested and energetic c. when you are feeling tired and sluggish d. a half hour after eating