In what countries is heroin most used? And where is it produced the most?

The biggest component / ingredient of summer time smog is

4. write short introduction to aaran and jaanto technology.

All of the following are examples of sedimentary rocks except? a) sandstone made of small pieces of sand cemented together b) coquina made of small shells cemented together c) shale made of small silt particles cemented together d) quartzite, or sandstone that has been subject to high pressure and heat over time