Process Control Block (PCB, also called Task Controlling Block, Task Structure or Switchframe) is a data structure in the Operating System kernel containing the information needed to manage a particular process.The PCB is the manifestation of a process in an Operating System.

Bile juice is produced by the liver and stored in the gallbladder, which is a small organ located beneath the liver. When needed, bile is released from the gallbladder into the small intestine to aid in the digestion and absorption of fats and fat-soluble vitamins. So, the correct answer is the liver secretes bile juice, and it is stored in the gallbladder before being released into the small intestine.

The Amazon rainforest is the largest tropical rainforest in the world. The Amazon is the largest rainforest in the world. It is home to more than 30 million humans and one in ten known species in the world. The Amazon rainforest covers a vast area of 6.7 million square kilometres.