Easy answer you could have come up with by yourself I think.
Crude oil, means oil straight from the ground and not refined yet.
Heavy metals means not light metals. So not iron or sodium but Lead...
Heavy crude is less in demand than light crude, because it needs more expensive refining to make it usable. Since it is less in demand, it is cheaper to buy.
Smoke a lot of weed snort coke and develope your musical talent!!! In that order. ^ that happens after you have already become a famouse metal musician. You would have to listen to what genre of...
The viscosity of Crude Oil found in Iranian reservoirs are estimated by many scholars. As of today the viscosity estimate can be sought from many scholars. The data is given below.
Viscosity, cP...