Sofia is planning her physical activities for the week and wants to choose an activity that will her build stamina. she should choose an activity that

Describe some of the common health conditions associated with air pollution.

Mucous membranes.. a. cover or line external surface of body. b. line internal body surfaces that are in contact with the environment. c. produce antibodies to combat infection. d. secrete sweat, which has antibacterial enzymes.

What should you sprinkle on cut fruits to slow the browning process? a.oil b. lemon juice or acids c.salt d.melted butter