Hydroponics is the art of growing plants without soil. When most people think of growing marijuana hydroponically, they think of growing their plants with their roots suspended directly into water with absolutely no growing medium. However, this is only one type of hydroponic growing. There are several variations including growing your plant in a soilless medium such as perlite/coco coir and then watering your plants every day, which is not very different from growing in soil.
Hash (hashish) is the resin collected from the flowers of the cannabis plant. The colour of hash is generally said to be black (Afghanistan), brown or blonde (Morocco); hash from Lebanon is greenish or reddish. A green hue may indicate that the hashish contains a large amount of leaf material.
Hash oil is more or less the same as weed oil, but is made from the resin of the plant. Whereas weed oil has a tendency to be greenish (unless filtered properly) hash oil tends to be gold or honey colored. For all products (dab) certain solutions are used for processing, generally butane, propane or carbon dioxide. By creating high pressure on the grass buds one evaporates most of the compounds but preserves the CBD.
the Bankrupcy concerns the failure of the Weed-pass policy at Haarlem. Due to this regulation a lot of shops there had to close their doors, as more than half of the cannabis users refused to be registered, and started looking for other sources on the streets again.