One danger of a positive feedback loop is that "if too many new jobs are allowed to enter the job stream, the result can be an increase in page faults." However, a positive feedback loop can still function as an "amplifier" which could change the equilibrium state of a system into unstable.
They had trade routes and sold to the people of the lands.
Answer: Annular solar eclipse
Explanation:
The Earth cannot block the entire sun due to it's distance from the moon that's why lunar eclipse are more observed than solar eclipse.
The answer is the Grand Central Station. It has 44 platforms and all the platforms are on the ground serving 56 tracks.