Answer:
um, you stop talking? well rn I'm pst. a friend blocked me after I said it'll be my bday in 5 days I'm gonna get my cake rn and then next thing you notice she blocks me on email hangouts and its not fair its close to my bday she did this to me! I hate her now and I could seriously punch her!!! (autistic spectrum btw) she is a meaniiiiiieeee I could seriously hit her and the whole world for a day but I'm going to be 13 in 5 days, this isn't fair!! u gotta cheer me up!!! u got to
(crying)
Exchange systems help primarily with:
a. balance.
Preventable communicable, or infectious, diseases like malaria and HIV/AIDS account for millions of deaths in the world each year, especially in low-income countries. Noncommunicable, or chronic, diseases like heart disease and diabetes are having an increasing effect across the globe.
