Just like convection in air, when denser water sinks, its space is filled by less dense water moving in. This creates convection currents that move enormous amounts of water in the depths of the ocean.
Because the Nile River is an tourist attraction and where there's people there's stores.
Bangkok is the most visited cities in the world.
Explanation:
Bangkok tops the most visited cities in the world where about 20 million people visit this country every year.
This is based on the visits of the people, who spend at least a night in Bangkok and spend money there.
Hence Option C, that is Bangkok is the most visited cities according to the reports.
Followed by Bangkok, London is the second in the list where 19.8 visitors are registered per year.