XANAX (alprazolam) HAS a duration of action of up to 6 hours. If you want to know how long after you take it can it be DETECTED, that's different. Most benzodiazapines, when taken on a regular basis, can be detected in the urine from 24 hours to 72 hours.
The color of that mulch is a dark brown, browner than most brown mulches. I thought it was good mulch until I noticed how large the pieces were. They were similar to large chunks of wood more so than mulch.
There are many types of mulch, from wood chips and bark to straw and even shredded paper. Mulch weight varies significantly among types. Even in loose piles, mulches such as wood chips can be quite heavy due to the density of the material. Others, such as straw, are much lighter and more airy.