Their progress and wealth is highly dependent on the harvests, and the price of grain. They probably have to import some industrial products and if they had a bad year (weather, other catastrophies, poor technology) they can't get the necessary amount of industrial products in exchange for their surplus e. g. in grain. There are so many standards and requirements about the quality of food production that no country can survive solely on agriculture without high quality technology (machines, unharmful fertilizers, research-based breeding, etc.).
This process is known as thermohaline circulation. In the Earth's polar regions ocean water gets very cold, forming sea ice. As a consequence the surrounding seawater gets saltier, because when sea ice forms, the salt is left behind. As the seawater gets saltier, its density increases, and it starts to sink.
Hot and dry in some places, but in other places it was full of life and water.
Answe:delta do Mekong
ExplanationO delta do Mekong foi palco das batalhas mais selvagens da Guerra do Vietnã e muitos ali morreram. Hoje atrai turistas de todas as partes do mundo, que querem navegar por aquelas águas históricas e conhecer um pouco de seu humilde povo:
