Systemic.....................................................................
Answer:
start skating in hilly areas
Explanation:
it would make skating more difficult, hence increasing the intensity.
Answer:
Prior to more stringent blood safety measures and more sensitive tests, HIV from infected blood donors made its way into blood products. From the late 1970s to the mid-1980s, about half of all people with hemophilia became infected with HIV after using contaminated blood products.
Well, I'm no expert but U can try baking soda and hydrogen peroxide... mix them up and then swish in your mouth. but dont do it 2 often, because those are both very acidic! Hope I helped