An additional risk associated with injecting Heroin with a needle is the risk of

could be hepatitis or just plain ole HIV. basically STDS

Explanation:

lots of users re-use old needles

infection and disease or even mental illness

answer:

i don't believe the ocean is purple, but it might once have been:

as for the sky, according to nasa:

"sunlight reaches earth's atmosphere and is scattered in all directions by all the gases and particles in the air. blue light is scattered more than the other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time."