Tourism is the LARGEST industry in the world.
I think it’s ABE Sorry if it’s wrong
Algae is warmful for the organisims of the area
Gobi desert; yellow sand; yellow river
Rural settlement means people living in rural areas, that is, not in the cities (which are urban areas).
Less and less people live in rural areas because there are less jobs there than in the city as our farming becomes more and more industrialized - before more people had to work on the farm, as more things had to be done by hand.
