Answer:
Slow slip, silent
Explanation:
Slow slip refers to earthquakes that occur ~25 miles below the earth's surface, which are called Silent quakes. Detecting the onset of such events can provide a warning that a large earthquake is imminent
The second largest city in Brazil is Rio de Janeiro, while the third biggest is the capital Brasilia. Rio de Janeiro has an estimated population of around 6,5 million people while Brasilia has little less than 3 million. This makes Rio de Janeiro more than twice bigger in population than the capital of Brazil, Brasilia. But there's something interesting in here in the background, in the past 6 years the population of the second Rio de Janeiro has only increased by little over 9%, while Brasilia's population has increased by around 20% which is more than twice in increase, so if that trend continues in the coming few decades Brasilia will come on top of Rio de Janeiro very quickly.
The salt will wash into the rivers and eventually the ocean. Too much salt in a freshwater system can be deadly to the wildlife. Ultimately, it will end up in the ocean, where it will have negligible impact. The real damage will be to any river systems it's washed into.
