The correct answer is - (1) velocity of the river decreases.
When the velocity (the speed) of the river decreases, be it at the entry of a lake, sea, ocean, or meandering, passing through a valley with very little change in altitude, the sediment starts to get deposited. This is due to the decrease in force caused by the decrease in velocity, there is not enough force to push the sediments further so they start to deposit because the river is not able to drag them further on.
The main cause was the assassination of Franz Ferdinand who was the archduke of Austria. He was assassinated by Gavriollo Princip who was Austrian - Hungarian. Those two countries were constantly in conflict because Hungary wanted to separate and once those countries went into war over the assassination their allies had to join being the rest of Europe. <span />
I believe that your weight will remain the same or increase because your weight is pushing down from the gravity!
1. Lack of Jobs
2. Migration that occurs when people follow fellow citizens to another location
3. China